Email copy and forward problem
Hi. I'm using ISPConfig 18.104.22.168 with postfix and maildrop on a Ubuntu LTS Server production environment and I'm facing a LOT of problens concerning the email copy feature.
Don't matter if I use "Send copy to" direct to the Destionation Email or if I "Send copy to" a Email Forward email, in both cases the same problens happens.
email@example.com <Send copy to> firstname.lastname@example.org
1- a@ reach it's quota limit
2- Everytime postfix try to delivery a email to a@, in the mail.log we will see "Permission denied maildrop: maildir over quota."
3- A copy of this email is sent over to b@
4- Now b@ have a bunch of duplicated emails and they will keep coming till someone clean a@ inbox.
There is a way to "fix" that?
I mean, b@ should receive only a copy of the first attenpt or at least a copy of the delivered email, not the denied ones.
email@example.com <Send copy to> firstname.lastname@example.org (Email forward one)
email@example.com <Forward a copy to> firstname.lastname@example.org, email@example.com, firstname.lastname@example.org
email@example.com <Send copy to> firstname.lastname@example.org
email@example.com <Send copy to> firstname.lastname@example.org
email@example.com <Send copy to> firstname.lastname@example.org
1- a@ got a new mail
2- A copy goes to cc.a@
3- cc.a@ forwards a copy to b@, c@ and d@
4- b@ send a copy to x@
5- c@ send a copy to x@
6- d@ send a copy to x@
7- x@ got 3 new duplicated emails
I believe that a copied email must stop in his first destination and not spread to the entire chain. The way postfix do when we add more destinations to the virtual file, like in:
email@example.com usrA, usrB, usrC
firstname.lastname@example.org usrB, usrX
email@example.com usrC, usrX
There is a way to "fix" that spread behavior of ispconfig?
Thanks for any help.
To do this we must generate to ".mailfilter" not only this line:
but eg. this code:
Patch ISPconfig /usr/local/ispconfig/server/plugins-available/maildrop_plugin.inc.php file:
Maybe Till do this in distro?
Thank you so much for your reply.
Today I tested you implementation but it didn't work. I tested booth, 1st and 2nd cases and the duplicated emails just keep coming.
I edited the .mailfilter of my test accounts and added you modifications to the cc line. Maybe I missunderstand something, but just that didn't made any difference other than a message Id been added to the .duplicate.cache for each incoming email.
If you have any other ideas I can gladly try.
hmmm It worked for me :)
Ok, lets do a step by step once again.
If we fill "Send copy to" field in ISPCOnfig panel, when ISPC generate file: /var/vmail/mailfilters/DOMAIN/USER/.mailfilter with line:
If you have generated ".duplicate.cache" file you have reformail command, and it works.
Maybe we misunderstand.
I do that a protects from sending CC for every TRY to put SAME mail in mailbox that is overquota.
But FIRST try of try will DO a CC. And for every (different) new mail that will (try) arrive to mailbox will be a CC too.
Only RESEND SAME mail from postfix queue to original (overquota) mailbox will not generate NEW CC to "Send copy to" user.
ps. if it will works however for you too, you need patch ISPC "plugins-available/maildrop_plugin.inc.php" file, in order to ISPC generate improvement ".mailfilter" each time user fill "Send copy to" in panel (how do this, I wrote in first reply).
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