Am 02.01.2018 um 19:59 schrieb stefan novak: > Hello! > > we are using Postfix as our MX Server for several mailservers, mostly > dovecot. We have now implemented an exchange Server as well. > > We are using the reject_unverified_recipient in combination with smtp > transport-table to submit the E-mail back to the exchange Server. > With our dovecot backends we can use the dovecot quota service in > combination with the check_policy_service that Mails from full > Mailboxes get rejected. How can i achieve this with our exchange > backend? Now the Mails get bounced, which is not very nice :/ > > Is there a way to tell postfix to accept the E-Mail only when the > exchange Server also wants to deliver it. Best will be when this works > only on quota, since somietims its good when the postfix in front > queue's the E-Mail. (Backend-Server reboot for patching...) > > kind regards and sorry for my english ;) > Stefan > _______________________ > www.epb.at - Your IT Partner in East Austria >
try this https://sys4.de/de/blog/2013/04/08/postfix-dovecot-mailbox-quota/ but be aware aliases etc may not have a mailbox quota, also the blog is old ,things may have changed , you may should cover the used port by vpn , ssltunnel etc more https://www.dovecot.org/list/dovecot/2016-July/104830.html https://wiki2.dovecot.org/Quota Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG, 80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
