[Mailman-Users] which firewall ports does Mailman require to be opened?

Adam McGreggor adam-mailman at amyl.org.uk
Thu Apr 19 17:30:57 CEST 2012

On Wed, Apr 18, 2012 at 10:31:04PM -0400, David wrote:
> On an Ubuntu 10.04 server that does nothing but run Mailman (with Postfix)
> in a completely standard installation, which ports should be opened in
> iptables? Everything except Mailman and SSH is going to be denied.

I'd enable DNS, NTP, HTTP/HTTPS, SMTP, (S)Submission.


"To do each day two things one dislikes is a precept I have followed
 scrupulously: every day I have got up and I have gone to bed."
    -- W Somerset Maugham

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