Re: [gentoo-user] SSL CUPS and SMTP on port 587

[Grant <emailgrant@gmail.com>]

> > >>> My ISP (Cox) blocks outgoing port 25 so I can't submit mail to my
> > >>> remote mail server.  From what I understand, port 587 is commonly used
> > >>> to get around this.  Can I have postfix listen on port 25 and port
> > >>> 587?  Has anyone set that up?
> > >> I do it slightly differently: I leave an SSH connection from my box to
> > >> the mail server, which maps some local port to port 25 on the mail
> > >> server, and send all my mail to the local port.
> > >
> > > Yeah I think I'll do that if port 587 doesn't work out.  From what I
> > > understand, using 587 in this way is somewhat of a standard?
> >
> > In your master.cf uncomment the following lines and then restart
> > Postfix. It should just work if you already have TLS setup.
> >
> > smtps     inet  n       -       n       -       -       smtpd
> >          -o smtpd_tls_wrappermode=yes
> >
> > kashani
>
> I uncommented the above line and added the following to main.cf:
>
> smtpd_tls_security_level = may
>
> as instructed here:
>
> http://www.postfix.org/TLS_README.html#server_enable
>
> and restarted postfix, but I still can't send.  In claws-mail, I tried
> specifying 587 and I'm specifying Use SSL for SSMTP.  I'm guessing TLS
> isn't set up properly?
>
> - Grant

Also I can see with nmap that smtps 465 is open and 587 is not.  No
luck specifying 465 in claws-mail though.

- Grant
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