How to use multiple IP for outgoing email?

Remitur

• June 14, 2018 10:31

I have a cpanel server used ad shared email server. Some users have their own dedicate IP, but many users (few hundreds) use the main server IP for outgoing email. So sometimes happen that the IP goes into blacklist 'cause of a single ser who did something wrong... Having the availability of a dozen or so of free IPs, I would like to use all of them for shared service: that's to say, i.e., if I have 100.100.100.101 to 100.100.100.113 available, doing that for outgoing emails all of them are used. So, if it happens that one of them goes into BL, I can temporarily remove it from the "pool" of available IPs, and do what's necessary before putting it in use again... Is it possible? How?

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  cPanelMichael

  • June 14, 2018 15:51

  Hello @Remitur, We document how to configure the IP address that Exim uses for outgoing emails at: Thank you.

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  dalem

  • June 15, 2018 15:12

  Although Michael's link may work (never tested) subsequent cpanel updates may break it We run a separate stand alone exim mail server as a smart host and it has an IP randomizer that sends out on a different IP for every mail sent.

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