An email is modified by another product that is scanning and making a qualitative decision on the content of the email. It places its assessment in an X-header which is intended to be caught by an Ironport filter and actions taken such as routing and...

The documentation around destination control talks about "domain" and there is no field specific pop-up help for the destination. The online help does say "for each MX record of the specified domain or for the entire domain". Which is confusing as th...

Occasionally we see emails going out to various domains that sit in the delivery queue for hours. The mail_logs show only "queued for delivery", smtp_debug shows no attempt to deliver and the system log doesn't show any DNS errors.  Where else should...

We have some filters that require an exception group for each filter type, eg. certain_attachments_block, message_size_block, message_content_block and for each type of block there is a list of exception senders or recipients, for people with permiss...