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I have two relays and they both have exim4 running. Is there a reason for this? Do I have a need for a mail service running?

  • Running a Tor relay doesn't explicitly require exim, or any mail service, at all, if that's what you're asking? – cacahuatl Jan 11 '17 at 10:55
  • My thoughts are to turn it off as there is no need. – jmd8800 Jan 11 '17 at 11:18
  • Seems fine, I think some distros like debian and others end up installing exim for handling localhost mail (e.g. sending email alerts to root@localhost) so you end up with a (potentially) superfluous mail server. – cacahuatl Jan 11 '17 at 12:32

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