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My ISP imposes SMTP restrictions on outgoing mail, is it possible to configure a system wide SMTP address to use, instead of having to configure each mail client individually?

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I having problems with the mail command. How were you able to tell it was an isp block? – naftalimich Aug 1 '12 at 1:47

1 Answer

This worked for me:

  • Open up /etc/postfix/main.cf
  • Replace relayhost = by relayhost = relay.your-isp.com where relay.your-isp.com is your ISP's SMTP server.
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