Security Gateway: SIZE check with Destination MTA during SMTP Session
During the SMTP session with external MTA, have SG check size with eventual destination MTA
Thank you for the additional details. Checking with the MTA for the maximum size allowed will be considered for future versions.
Thanks for providing more information on this feature. It will be considered for future versions of SecurityGateway.
David Moring commented
Inbound - but while in (inbound) SMTP session (and during user-verification to destination MTA). Currently, SG checks destination MTA for To: address validity accepts a mail and then forwards onto destination MTA. If there is a size-issue at the destination MTA, it is rejected and the NDR is generated. Instead have the option for SG to check size with Destination MTA during the To-Address check.