[Alfa1]

Originally Posted by mokonzi

vBMail has a threshold feature, meaning an email address can bounce x amount of times before it will be unsubscribed. It uses the standard bounce header to control what it classes as 'real' bounces, but also (as it uses an IMAP email address) list all emails coming to the bounce email address and allows you to manually mark it as 'bounced' mail (for example mailbox full problems don't count as a bounced mail, but you could set it to bounced after the 72 hours mail that often comes).

Once it's marked a user as bounced and processed them (by hourly cron jobs) it then unsubscribes them from all mail lists AND turns off all the email related features within vB's standard install (I'm not sure how it would fare with any non DBTech mod's email features atm).

Thanks Mokonzi. Thats very helpful. Could you elaborate on how it use the bounce header to define a bounce? Does it look for certain phrases? Many bounce headers do not have useful information anymore these days and many email providers use their own system/way to alert about bounced email.

Once vbmail marks a user as having an invalid email account, then is there a possibility for the admin to restrict the account? Such accounts are mainly from inactive users or from spammers / trolls.
My site benefited greatly from restricting accounts with inactive email addresses. Spam and trolling went down drastically.