While integrating FortiMail in our monitoring system I recognised there are 6 different queue types:
The difference between regular queue and slow queue is documented quite well:
• Regular mail queue
When the initial attempt to deliver an email fails, the FortiMail unit moves the email to the
regular mail queue.
• Slow mail queue
After another two failed delivery attempts, the FortiMail unit moves the email to the slow mail
queue. This allows the FortiMail unit to resend valid email quickly, instead of keep resending
invalid email (for example, email destined to an invalid MTA)
What's the difference between default, incoming and outgoing?
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