Certainly something I'll check next time this happens.
In this particular case it was my email accounts on two vsites that
happened at the same time. I don't manually enter my password. It is
entered automagicaly by Thunderbird and Gmail on an Android. The first
indication I had that there was a problem was around noon when my phone
started giving me failed login messages via Gmail.
Since I was out on a jog and was busy I ignored the problem until I got
back around 7. I did the restarts and the problem persisted so I sent
the message.
It apparently cleared itself up around 11.
I appreciate the ideas of what to look for in troubleshooting this sort
of problem.
Chuck Tetlow wrote:
Probably too many failed log in attempts. I have it happen with users
all the time - they call me and say they've only fat-fingered their
password once or twice. But the server is not set to block until after
five failed attempts. After the time-out period, mail starts flowing
again.
And in our case - that failed Login Manager block can stop ALL mail to
the BX server, not just one user. That's because everything flowing to
our BX servers goes through a CanIt Domain Pro SPAM filtering server.
When CanIt is not sure if its SPAM or HAM - it holds the message for
human review and sends a notice to the user to log in and check the
message.
But there are not logins for every user on the CanIt server (thousands
of users). They login to CanIt with their end server's username &
password. The server sends that to their BlueOnyx server in a POP
connection. If the BX server lets them in - CanIt lets them into CanIt
to perform the human review of what messages are in the traps. So if
someone makes a BUNCH of failed login attempts to CanIt - the BlueOnyx
Login Manager blocks that IP (the CanIt server), and all e-mail comes to
a screeching halt. Once the timeout lifts the IP block - mail starts
again on its own. But what PIA!
If it happens again Lewis - check for blocks in the SERVER MANAGEMENT,
SECURITY, and FAILED LOGINS. I'd suggest clicking the "Reset all
blocks" button, and see if mail starts again.
Chuck
*---------- Original Message -----------*
From: Lewis Gardner <lew...@iglou.com>
To: BlueOnyx General Mailing List <blueonyx@mail.blueonyx.it>
Sent: Sat, 03 Dec 2016 09:58:57 -0500
Subject: [BlueOnyx:20326] Re: Authentication failed
> Sorry for not updating this post.
>
> I tried unclicking Enable SMTP Server, Enable SMTP Auth and Enable POP
> Server (for good measure) then saved in the GUI. Waited a few minutes
> and reclicked those three and saved. No joy.
>
> About two hours later email resumed without further action on my part.
>
> Did making those changes in the GUI restart dovecot?
>
> Thanks!
>
> Michael Stauber wrote:
> > Hi Lewis,
> >
> >> Did something change?
> >>
> >> When trying to get email via POP I'm getting;
> >>
> >> "Sending of password did not succeed. Mail server xxxx.xxx responded:
> >> Authentication failed."
> >
> > Nope, there were no updates which could have caused this. Perhaps
> > dovecot-auth has hung up after a brute force attack?
> >
> > Try to stop dovecot. Then check the process list and kill off anything
> > related to dovecot that' still running. Then restart the service
and see
> > if it works. It usually does.
> >
> _______________________________________________
> Blueonyx mailing list
> Blueonyx@mail.blueonyx.it
> http://mail.blueonyx.it/mailman/listinfo/blueonyx
*------- End of Original Message -------*
------------------------------------------------------------------------
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