Hi guys TL;DR: how can i route, to a specific smarthost, all email based on the *recipient* mx IP address ?
Long version: I have a mail server hosted on Google Cloud that can't reach some "restricted" countries, like Cuba, Iran, Syria and so on. A customer of us, has a department located in Iran and is unable to communicate to them, so i've started an AWS instance (that is able to reach the remote iran server) and i would like to route, from my GCE instance all email that should be routed to an iran IP address (i have a list, downloaded from ipdeny.com), to my AWS instance. I can check for the remote MX in the transport, but: 1. i'm getting a list of multiple hosts 2. i need to convert one (or more) of them to IP addresses 3. i need to check if at least one of these IP is inside a file (automatically updated from ipdeny.com) I don't know how to start. Any help, or any better solution ? Checking the recipient TLD would be much easier but not all recipients ends in ".in" Currently, as workaround, i've set the AWS as fallback_host, because when an email is routed to Iran, goes in timeout and then routed to the fallback_host, but this is no good because is routing throuhg AWS all emails that are triggering a timeout but I need to route *only* emails to some ip addresses -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
