Hi everyone, On behalf of my employer I'm trying to port a script I used to parse x509-certificates with Postfix to work with Exim. This is my very first experience with Exim so bare with me if my questions come across as stupid. I did briefly plough through "The Exim SMTP mail server" (Hazel) and searched the archive, unfortunately without ending up that much wiser (well, in this regard).
What I want to do is something along the following lines: Let's say I have a daemon process in form of a python-script listening on a certain port on my machine. Upon recieving a x509-certificate from a remote machine Exim deligates this to my script, preferably over TCP but if not possible also through a pipe or similar. My script will then decide if the email be accepted or not. With postfix I would simply have my daemon listening to a port of my liking, say 5244, and then use a rule like: smtpd_recipient_restrictions = check_policy_service inet:localhost:5244 ...and so on... With Exim I've seen two options that I figure could do something similar. First, the queryprogram router, and secondly the run-command (in string expansions). The problems I see with these is that my script gets started and stopped each time an email arrives instead of remaining running as a daemon. Secondly, I haven't figured out how to pass the appropriate arguments to them (with Postfix, for example, I'd get a nice array with information about the client and it's certificate "for free" without explicitly having to ask for it). I'm afraid my limited experience with Exim kind of prevents me from asking the right questions, but I'd be very happy for any suggestions in the matter. Is my problem somewhat clear? Are there any other possible ways of achieving this? Is it at all possible for Exim to call my script over a TCP-port like stated above? Thanks in advance, Fredrik
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