Getting blacklisted too easily by Sorbs et al. was one of the reasons why I built a custom MTA instead of using Postfix to deliver mail.
We have lots of accounts to serve and from time to time someone gets hacked and their account credentials are used to send spam. We try to catch outbound spam but it gets really tricky because dropping suspicious mail immediately breaks automated messages that usually have very poor quality in regards of formatting and tend to trigger spam points (eg. your home NAS using your SMTP credentials sends a warning message that space is running out on the hard drive). Anyhow we now use home-brewed MTA (open sourced here: https://github.com/zone-eu/zone-mta <https://github.com/zone-eu/zone-mta> ) to get past the blacklist blockings - the software is able to use multiple IP addresses for sending and if it detects that some host has blacklisted currently used sending IP then this IP is temporarily disabled for that destination, a warning is raised and the message is routed through some other IP as in most cases the message that was blocked had nothing to do with the spam that triggered blacklisting. This gives enough time to get delisted while not blocking the sending of new messages. Best regards, Andris Reinman > On 4. jaan 2017, at 15:49, Vick Khera <vi...@khera.org> wrote: > > > On Tue, Jan 3, 2017 at 8:13 PM, Bryan Vest <murli...@gmail.com > <mailto:murli...@gmail.com>> wrote: > If someone from SORBS could contact me off list or on list I don't care, > either way we need to get this block removed. > > How much trouble is it causing you? I find it doesn't cause all that much > trouble in terms of mail being blocked. SORBS does not seem interested in > solving problems, but in punishing people. > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
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