[mysqldump]
# Default is 24MB which is not large enough for all mailman attachments.
# This affects clients including mysqldump. It is larger than the server
# side because mysqldump apparently can do larger packets to insert blobs.
max_allowed_packet=256M

[mysqld]
# Default is 16MB which is not large enough for all mailman attachments.
# This affects the server side.
max_allowed_packet=128M