Exim and allow certain ips to send

dzamanakos

• December 22, 2020 08:42

Hi, i would like some info about exim and how i can limit the ips that can send emails. My scenario is : Server A, cpanel Server B, custom server that sends mails with smtp through server A (A as smarthost). I would like only the ip of server B to be allowed to send emails. I could allow through my firewall only B ip to connect to 25/587/465 ports, but other problems will appear (a third mail server cannot connect to A to see if exists, smtp banner etc). Is there a way to setup exim to allow sending only from B ip and accept connections from any host to allow actions like helo, telnet to mailserver ports etc ? thank you in advance,

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  kernow

  • December 22, 2020 14:10

  Why not do it through cpanel on a per account basis? you can stop users sending/receiving mail in username>>>email accounts>>manage scroll down to 'Restrictions'

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  keat63

  • December 22, 2020 14:21

  Would Host Access Control do this, where you'd whitelist the SMTP service to one IP and deny to all others ?

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  dzamanakos

  • December 22, 2020 15:06

  Thank you for your answers, the restrictions per account is only allow/deny, cant set any ip. The Host Access Control is like the firewall, it wont allow access to mailserver. I want to have a rule only for who sends email, not who can connect to exim.

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  cPRex Jurassic Moderator

  • December 22, 2020 15:45

  If that is the case, you may need to use custom filters to perform that type of work.

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