Running a mailman list on Redhat using Postfix. Trying to understand a couple of closely related concepts about Mailgun's Suppression List or Bounce List.
Is it "permanent", in the sense that once an email is on that list it stays there indefinitely? Unless you manually intervene and remove it.
When querying the mailgun bounce list via the api, there are items on the list such as this one:
"address": "[email protected]",
"code": "552",
"error": "5.2.2 <[email protected]>: user is over quota",
"over quota" sounds similar to "mailbox full". A full mailbox shouldn't be a truly permanent error, right? Yet there it is in the bounce list. Does that indicate mailgun is interpreting a full mailbox (a temporary condition) as a permanent hard bounce which will be blocked indefinitely?