email headers fixing

alembic.ini

@@ -0,0 +1,141 @@
+# A generic, single database configuration.
+
+[alembic]
+script_location = alembic
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python>=3.9 or backports.zoneinfo library and tzdata library.
+# Any required deps can installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = sqlite:///email_server/server_data/smtp_server.db
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the exec runner, execute a binary
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = %(here)s/.venv/bin/ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/README

@@ -0,0 +1 @@
+Generic single-database configuration.

alembic/env.py

@@ -0,0 +1,79 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+from email_server.models import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

alembic/versions/53036910f343_initial_migration.py

@@ -0,0 +1,133 @@
+"""Initial migration
+
+Revision ID: 53036910f343
+Revises: 
+Create Date: 2025-06-01 11:14:39.589608
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '53036910f343'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    # The following columns may already exist, so we skip adding them if present.
+    # op.add_column('esrv_auth_logs', sa.Column('auth_type', sa.String(), nullable=False, server_default='user'))
+    # op.add_column('esrv_auth_logs', sa.Column('identifier', sa.String(), nullable=False, server_default='unknown'))
+    # op.add_column('esrv_auth_logs', sa.Column('ip_address', sa.String(), nullable=True))
+    # op.add_column('esrv_auth_logs', sa.Column('created_at', sa.DateTime(), nullable=True))
+    # SQLite does not support ALTER COLUMN, so we skip changing 'message' type/nullability here.
+    # If you need to change the type/nullability, do a manual migration as described in Alembic docs.
+    # op.drop_column('esrv_auth_logs', 'peer')
+    # op.drop_column('esrv_auth_logs', 'timestamp')
+    # op.drop_column('esrv_auth_logs', 'username')
+    # op.alter_column('esrv_custom_headers', 'created_at',
+    #            existing_type=sa.TIMESTAMP(),
+    #            type_=sa.DateTime(),
+    #            existing_nullable=True,
+    #            existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.drop_index(op.f('idx_esrv_custom_headers_domain'), table_name='esrv_custom_headers')
+    op.drop_index(op.f('idx_esrv_dkim_keys_domain'), table_name='esrv_dkim_keys')
+    # op.alter_column('esrv_domains', 'created_at',
+    #            existing_type=sa.TIMESTAMP(),
+    #            type_=sa.DateTime(),
+    #            existing_nullable=True,
+    #            existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.drop_column('esrv_domains', 'requires_auth')
+    op.add_column('esrv_email_logs', sa.Column('from_address', sa.String(), nullable=False, server_default='unknown'))
+    op.add_column('esrv_email_logs', sa.Column('to_address', sa.String(), nullable=False, server_default='unknown'))
+    op.add_column('esrv_email_logs', sa.Column('subject', sa.Text(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('message', sa.Text(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('created_at', sa.DateTime(), nullable=True))
+    op.drop_index(op.f('idx_esrv_email_logs_mail_from'), table_name='esrv_email_logs')
+    op.drop_index(op.f('idx_esrv_email_logs_timestamp'), table_name='esrv_email_logs')
+    # op.drop_column('esrv_email_logs', 'rcpt_tos')
+    # op.drop_column('esrv_email_logs', 'content')
+    # op.drop_column('esrv_email_logs', 'dkim_signed')
+    # op.drop_column('esrv_email_logs', 'peer')
+    # op.drop_column('esrv_email_logs', 'message_id')
+    # op.drop_column('esrv_email_logs', 'mail_from')
+    # op.drop_column('esrv_email_logs', 'timestamp')
+    # op.alter_column('esrv_users', 'created_at',
+    #            existing_type=sa.TIMESTAMP(),
+    #            type_=sa.DateTime(),
+    #            existing_nullable=True,
+    #            existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.drop_index(op.f('idx_esrv_users_domain'), table_name='esrv_users')
+    op.drop_index(op.f('idx_esrv_users_email'), table_name='esrv_users')
+    # op.alter_column('esrv_whitelisted_ips', 'created_at',
+    #            existing_type=sa.TIMESTAMP(),
+    #            type_=sa.DateTime(),
+    #            existing_nullable=True,
+    #            existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.drop_index(op.f('idx_esrv_whitelisted_ips_domain'), table_name='esrv_whitelisted_ips')
+    op.drop_index(op.f('idx_esrv_whitelisted_ips_ip'), table_name='esrv_whitelisted_ips')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_index(op.f('idx_esrv_whitelisted_ips_ip'), 'esrv_whitelisted_ips', ['ip_address'], unique=False)
+    op.create_index(op.f('idx_esrv_whitelisted_ips_domain'), 'esrv_whitelisted_ips', ['domain_id'], unique=False)
+    op.alter_column('esrv_whitelisted_ips', 'created_at',
+               existing_type=sa.DateTime(),
+               type_=sa.TIMESTAMP(),
+               existing_nullable=True,
+               existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.create_index(op.f('idx_esrv_users_email'), 'esrv_users', ['email'], unique=False)
+    op.create_index(op.f('idx_esrv_users_domain'), 'esrv_users', ['domain_id'], unique=False)
+    op.alter_column('esrv_users', 'created_at',
+               existing_type=sa.DateTime(),
+               type_=sa.TIMESTAMP(),
+               existing_nullable=True,
+               existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.add_column('esrv_email_logs', sa.Column('timestamp', sa.DATETIME(), nullable=False))
+    op.add_column('esrv_email_logs', sa.Column('mail_from', sa.VARCHAR(), nullable=False))
+    op.add_column('esrv_email_logs', sa.Column('message_id', sa.VARCHAR(), nullable=False))
+    op.add_column('esrv_email_logs', sa.Column('peer', sa.VARCHAR(), nullable=False))
+    op.add_column('esrv_email_logs', sa.Column('dkim_signed', sa.BOOLEAN(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('content', sa.TEXT(), nullable=False))
+    op.add_column('esrv_email_logs', sa.Column('rcpt_tos', sa.VARCHAR(), nullable=False))
+    op.create_index(op.f('idx_esrv_email_logs_timestamp'), 'esrv_email_logs', ['timestamp'], unique=False)
+    op.create_index(op.f('idx_esrv_email_logs_mail_from'), 'esrv_email_logs', ['mail_from'], unique=False)
+    op.drop_column('esrv_email_logs', 'created_at')
+    op.drop_column('esrv_email_logs', 'message')
+    op.drop_column('esrv_email_logs', 'subject')
+    op.drop_column('esrv_email_logs', 'to_address')
+    op.drop_column('esrv_email_logs', 'from_address')
+    op.add_column('esrv_domains', sa.Column('requires_auth', sa.BOOLEAN(), nullable=True))
+    op.alter_column('esrv_domains', 'created_at',
+               existing_type=sa.DateTime(),
+               type_=sa.TIMESTAMP(),
+               existing_nullable=True,
+               existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.create_index(op.f('idx_esrv_dkim_keys_domain'), 'esrv_dkim_keys', ['domain_id'], unique=False)
+    op.create_index(op.f('idx_esrv_custom_headers_domain'), 'esrv_custom_headers', ['domain_id'], unique=False)
+    op.alter_column('esrv_custom_headers', 'created_at',
+               existing_type=sa.DateTime(),
+               type_=sa.TIMESTAMP(),
+               existing_nullable=True,
+               existing_server_default=sa.text("'2025-05-31 00:00:00'"))
+    op.add_column('esrv_auth_logs', sa.Column('username', sa.VARCHAR(), nullable=True))
+    op.add_column('esrv_auth_logs', sa.Column('timestamp', sa.DATETIME(), nullable=False))
+    op.add_column('esrv_auth_logs', sa.Column('peer', sa.VARCHAR(), nullable=False))
+    op.alter_column('esrv_auth_logs', 'message',
+               existing_type=sa.Text(),
+               type_=sa.VARCHAR(),
+               nullable=False)
+    op.drop_column('esrv_auth_logs', 'created_at')
+    op.drop_column('esrv_auth_logs', 'ip_address')
+    op.drop_column('esrv_auth_logs', 'identifier')
+    op.drop_column('esrv_auth_logs', 'auth_type')
+    # ### end Alembic commands ###

alembic/versions/d02f993649e8_add_legacy_emaillog_columns_for_.py

@@ -0,0 +1,42 @@
+"""Add legacy EmailLog columns for backward compatibility
+
+Revision ID: d02f993649e8
+Revises: 53036910f343
+Create Date: 2025-06-01 11:50:54.362830
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'd02f993649e8'
+down_revision: Union[str, None] = '53036910f343'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # Add legacy columns for backward compatibility with existing EmailRelay code
+    op.add_column('esrv_email_logs', sa.Column('message_id', sa.String(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('timestamp', sa.DateTime(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('peer', sa.String(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('mail_from', sa.String(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('rcpt_tos', sa.String(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('content', sa.Text(), nullable=True))
+    op.add_column('esrv_email_logs', sa.Column('dkim_signed', sa.Boolean(), nullable=True, default=False))
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # Remove the legacy columns
+    op.drop_column('esrv_email_logs', 'dkim_signed')
+    op.drop_column('esrv_email_logs', 'content')
+    op.drop_column('esrv_email_logs', 'rcpt_tos')
+    op.drop_column('esrv_email_logs', 'mail_from')
+    op.drop_column('esrv_email_logs', 'peer')
+    op.drop_column('esrv_email_logs', 'timestamp')
+    op.drop_column('esrv_email_logs', 'message_id')

email_server/models.py

@@ -129,15 +129,26 @@ class EmailLog(Base):
     __tablename__ = 'esrv_email_logs'
     
     id = Column(Integer, primary_key=True)
-    from_address = Column(String, nullable=False)
+    
-    to_address = Column(String, nullable=False)
+    # Legacy columns (from original schema)
-    subject = Column(Text)
+    message_id = Column(String, unique=True, nullable=False)
+    timestamp = Column(DateTime, nullable=False)
+    peer = Column(String, nullable=False)
+    mail_from = Column(String, nullable=False)
+    rcpt_tos = Column(String, nullable=False)
+    content = Column(Text, nullable=False)
     status = Column(String, nullable=False)
-    message = Column(Text)
+    dkim_signed = Column(Boolean, default=False)
+    
+    # New columns (added later)
+    from_address = Column(String, nullable=False, server_default='unknown')
+    to_address = Column(String, nullable=False, server_default='unknown')
+    subject = Column(Text, nullable=True)
+    message = Column(Text, nullable=True)
     created_at = Column(DateTime, default=func.now())
     
     def __repr__(self):
-        return f"<EmailLog(id={self.id}, from='{self.from_address}', to='{self.to_address}', status='{self.status}')>"
+        return f"<EmailLog(id={self.id}, message_id='{self.message_id}', from='{self.mail_from}', to='{self.rcpt_tos}', status='{self.status}')>"
 
 class AuthLog(Base):
     """Authentication log model for security auditing."""

email_server/smtp_handler.py

@@ -9,6 +9,7 @@ Security Features:
 """
 
 import uuid
+import email.utils
 from datetime import datetime
 from aiosmtpd.smtp import SMTP as AIOSMTP, AuthResult
 from aiosmtpd.controller import Controller
@@ -61,85 +62,47 @@ class EnhancedCustomSMTPHandler:
         self.auth_methods = ['LOGIN', 'PLAIN']
 
     def _ensure_required_headers(self, content: str, envelope, message_id: str) -> str:
-        """Ensure all required email headers are present.
+        """Ensure all required email headers are present and properly formatted.
-        
+
         Args:
             content (str): Email content.
             envelope: SMTP envelope.
             message_id (str): Generated message ID.
-            
+
         Returns:
             str: Email content with all required headers.
         """
-        import email.utils
+        import email
-        from datetime import datetime
+        from email.parser import Parser
-        
+        from email.policy import default
-        # Parse existing headers
+
-        lines = content.split('\n')
+        # Parse the message using the email library
-        headers = {}
+        msg = Parser(policy=default).parsestr(content)
-        body_start = 0
+
-        
+        # Set or add required headers if missing
-        # Find where headers end and body begins
+        if not msg.get('Message-ID'):
-        for i, line in enumerate(lines):
+            msg['Message-ID'] = f"<{message_id}@{envelope.mail_from.split('@')[1] if '@' in envelope.mail_from else 'localhost'}>"
-            if line.strip() == '':
+        if not msg.get('Date'):
-                body_start = i + 1
+            msg['Date'] = email.utils.formatdate(localtime=True)
-                break
+        if not msg.get('From'):
-            if ':' in line and not line.startswith(' ') and not line.startswith('\t'):
+            msg['From'] = envelope.mail_from
-                header_name, header_value = line.split(':', 1)
+        if not msg.get('To'):
-                headers[header_name.strip().lower()] = header_value.strip()
+            msg['To'] = ', '.join(envelope.rcpt_tos)
-        
+        if not msg.get('MIME-Version'):
-        # Extract body
+            msg['MIME-Version'] = '1.0'
-        body = '\n'.join(lines[body_start:]) if body_start < len(lines) else ''
+        if not msg.get('Content-Type'):
-        
+            msg['Content-Type'] = 'text/plain; charset=utf-8'
-        # Build required headers
+        if not msg.get('Subject'):
-        required_headers = []
+            msg['Subject'] = '(No Subject)'
-        
+        if not msg.get('Content-Transfer-Encoding'):
-        # Add Message-ID if missing
+            msg['Content-Transfer-Encoding'] = '7bit'
-        if 'message-id' not in headers:
+
-            required_headers.append(f"Message-ID: <{message_id}@{envelope.mail_from.split('@')[1] if '@' in envelope.mail_from else 'localhost'}>")
+        # Ensure exactly one blank line between headers and body
-        
+        # The email library will handle this when flattening
-        # Add Date if missing
+        from io import StringIO
-        if 'date' not in headers:
+        out = StringIO()
-            required_headers.append(f"Date: {email.utils.formatdate(localtime=True)}")
+        out.write(msg.as_string())
-        
+        return out.getvalue()
-        # Add From if missing
-        if 'from' not in headers:
-            required_headers.append(f"From: {envelope.mail_from}")
-        
-        # Add To if missing
-        if 'to' not in headers:
-            to_list = ', '.join(envelope.rcpt_tos)
-            required_headers.append(f"To: {to_list}")
-        
-        # Add MIME-Version if missing
-        if 'mime-version' not in headers:
-            required_headers.append("MIME-Version: 1.0")
-        
-        # Add Content-Type if missing
-        if 'content-type' not in headers:
-            required_headers.append("Content-Type: text/plain; charset=utf-8")
-        
-        # Rebuild the email with required headers first, then existing headers, then body
-        new_content_lines = required_headers
-        
-        # Add existing headers (excluding the ones we just added)
-        for i in range(body_start):
-            line = lines[i]
-            if ':' in line and not line.startswith(' ') and not line.startswith('\t'):
-                header_name = line.split(':', 1)[0].strip().lower()
-                if header_name not in ['message-id', 'date', 'from', 'to', 'mime-version', 'content-type']:
-                    new_content_lines.append(line)
-            elif line.startswith(' ') or line.startswith('\t'):
-                # Continuation of previous header
-                new_content_lines.append(line)
-        
-        # Add empty line between headers and body
-        new_content_lines.append('')
-        
-        # Add body
-        new_content_lines.append(body)
-        
-        return '\r\n'.join(new_content_lines)
 
     async def handle_DATA(self, server, session, envelope):
         """Handle incoming email data."""

main.py

@@ -0,0 +1,17 @@
+from email_server.server_runner import start_server
+from email_server.tool_box import get_logger
+import asyncio
+import sys
+
+logger = get_logger()
+
+if __name__ == '__main__':
+    try:
+        logger.info('Server started')
+        asyncio.run(start_server())
+    except KeyboardInterrupt:
+        logger.info('Server interrupted by user')
+        sys.exit(0)
+    except Exception as e:
+        logger.error(f'Server error: {e}')
+        sys.exit(1)

start_server.py

@@ -1,17 +0,0 @@
-from email_server.server_runner import start_server
-from email_server.tool_box import get_logger
-import asyncio
-import sys
-
-logger = get_logger()
-
-if __name__ == '__main__':
-    try:
-        logger.info('Server started')
-        asyncio.run(start_server())
-    except KeyboardInterrupt:
-        logger.info('Server interrupted by user')
-        sys.exit(0)
-    except Exception as e:
-        logger.error(f'Server error: {e}')
-        sys.exit(1)