dovecot - Jul 2019 - Sent messages disappear and don't arrive. (Receiving is ok)

Hi List,

I'm running an email server (Postfix, Dovecot, MySQL) on an RPi. I set it
up using this 'howto' https://pestmeester.nl/index.html#11.0. It seemed
to
work but now sent emails just disappear and are not received. Inward emails
are ok.

I'm a Linux and Postfix Dovecot learner so please treat me as not being
very knowledgeable. I'm not even sure if this is a Postfix or Dovecot issue
so I've posted to both. (Nothing from Postfix so far!)

I've tried to include what relevant info I thought a helper might need but
if I've missed something please let me know.

I'll appreciate any help.

TIA,

John
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On 14 Jul 2019, at 03:35, John via dovecot <dovecot at dovecot.org>
wrote:
> I'm running an email server (Postfix, Dovecot, MySQL) on an RPi. I set
it up using this 'howto' https://pestmeester.nl/index.html#11.0. It
seemed to work but now sent emails just disappear and are not received. Inward
emails are ok.
You will need to look in your postfix logs to see what is happening to outbound
mails.

If you are on a home connection, most ISPs do not allow mail servers.


-- 
Science is the foot that kicks magic square in the nuts.

Check the postfix queue,  I ran sendmail servers for a number of years.  I
don?t know anything about postfix but I would try that if your mails cannot
be sent.

On Sun, Jul 14, 2019 at 2:21 PM @lbutlr via dovecot <dovecot at
dovecot.org>
wrote:
> On 14 Jul 2019, at 03:35, John via dovecot <dovecot at dovecot.org>
wrote:
> > I'm running an email server (Postfix, Dovecot, MySQL) on an RPi. I
set
> it up using this 'howto' https://pestmeester.nl/index.html#11.0. It
> seemed to work but now sent emails just disappear and are not received.
> Inward emails are ok.
>
> You will need to look in your postfix logs to see what is happening to
> outbound mails.
>
> If you are on a home connection, most ISPs do not allow mail servers.
>
>
> --
> Science is the foot that kicks magic square in the nuts.
>
>
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