Hi, We run a number of backup MXs for our customers and I'm doing some tuning to reduce the number of mails that languish in the queues on these machines. A large number of the mails stuck in the queues are spam to non-existent addresses at the third party server. At the moment the mails sit in the queue being retried periodically and are then finally deleted after a week. I would like to reject these mails much sooner.
Looking through the ACL documentation I see the callout verification mechanism that looks like it will do the job, but I have a number of concerns: - When a callforward is performed is the sender's connection to my server kept open? My guess is not. - If a check is successful is the message sent over the same connection? - What does the sender see when the callforward check fails (non-existent recipient)? My guess is that this depends on the way I write my ACL? - What happens when multiple recipients are specified? Is a callforward tried for each recipient? TIA, Alex. -- -= Alex Dyas - UNIX - Interoute - Geneva =- -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
