Re: smtps 465 works, submission 587 does not

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On Fri, Dec 9, 2011 at 10:14 AM, Grant <emailgrant@xxxxxxxxx> wrote:
>>> I now have Thunderbird connecting remotely to 587 and Squirrelmail
>>> connecting locally to 587 without encryption or authentication.  Do
>>> you see any problems with my config?  Please consider everything else
>>> default.
>>>
>>> master.cf:
>>>
>>> submission inet n       -       n       -       -       smtpd
>>> -o smtpd_sasl_auth_enable=yes
>>> -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject
>>
>> Seems alright, but if you are just learning (heck, even if not), IMO
>> it's better to keep things separate.  It's (my suggestion, that is)
>> much easier to maintain and allows much greater flexibility in the
>> policies you can enforce against webmail vs. external clients.
>
> You're saying I should have Squirrelmail and Thunderbird submit on
> different ports?  I was under the impression that all submission
> should take place on 587.

You can do whatever you want with your own server.  It makes sense to
me to do what is easiest to maintain and happens to be more powerful
and flexible.  Simplicity is a bonus when you are just figuring things
out.

>>> main.cf:
>>>
>>> smtpd_recipient_restrictions =
>>>  reject_unauth_destination,
>>>  permit
>>
>> You've got a lot to add to this one.  Please refer to the postfix
>> community for help with that.
>
> I think it's OK since it would only apply to port 25.
> smtpd_recipient_restrictions is defined explicitly for port 587 in
> master.cf.  Please correct me if I'm wrong.

You're wrong if you're accepting mail from the outside world on port
25.  You'll get all kinds of junk without better configuration here.
Also make sure to test your server against being an open relay.

You really need to read the docs and ask around the postfix community.

-- 
Paul Lesniewski
SquirrelMail Team
Please support Open Source Software by donating to SquirrelMail!
http://squirrelmail.org/donate_paul_lesniewski.php

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