pf table size (IPv4), after adding a custom fail2ban rule which immediately blocks any IP address that tries to log in to the IMAP server using username@domain (I don't do virtual hosting and the usernames don't have @s).

@galaxis Want to share this rule? Would be interested for the same reason …

@goetz Siehe hier:

Ist allerdings für eher alten Dovecot, kann sein dass das Logformat Anpassungen braucht.

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