[BlueOnyx:26689] Re: Updating users password results inability to access inbox on local network

[Ken Marcus]

Possibly you exceeded the max ip and user connections for IMAP.  Set in one
of the dovecot conf files.  Tends to happen with macmail,  iphone.

On Wed, Dec 27, 2023, 9:04 PM Chad A. Bersche via Blueonyx <
blueonyx at mail.blueonyx.it> wrote:

> I've got a bit of a stumper on an account password change.
>
> I updated a local userid to have a new password.  I also updated the
> user's password on their iPhone.  The phone is often on the same LAN as
> the mail server.  I have DNS entries that sort out the IP address of the
> mail hostname when on the local network, and when on a mobile network,
> the external DNS entries point to the valid external accessible IP to
> the same host.  Now comes the weird part: When on the local network, my
> iPhone gives a "Cannot get Mail  No password provided for
> "maskedemail at maskeddomain.com".  However when I switch to the LTE
> network and attempt to fetch mail, all goes according to plan. I've
> pulled some of the maillog entries from the logins:
>
>
> Logging in from local network:
>
> Dec 27 22:19:12 mail dovecot[3058731]: imap-login: Disconnected: Aborted
> login by logging out (auth failed, 2 attempts in 8 secs): user=<masked>,
> method=PLAIN, rip=172.18.0.35, lip=172.18.170.213, TLS,
> session=<2jRFN4oNqNesEgAj>
> Dec 27 22:19:24 mail dovecot[3058731]: imap-login: Disconnected: Aborted
> login by logging out (auth failed, 2 attempts in 12 secs):
> user=<masked>, method=PLAIN, rip=172.18.0.35, lip=172.18.170.213, TLS,
> session=<E9nBN4oNqdesEgAj>
>
>
> Logging in from Mobile/LTE network:
> Dec 27 22:20:03 mail dovecot[3058731]: imap-login: Login: user=<masked>,
> method=PLAIN, rip=174.243.50.183, lip=172.18.170.213, mpid=3928153, TLS,
> session=<BwfGOooNESuu8zK3>
> Dec 27 22:20:03 mail dovecot[3058731]: imap-login: Login: user=<masked>,
> method=PLAIN, rip=174.243.50.183, lip=172.18.170.213, mpid=3928154, TLS,
> session=<PrrGOooNACuu8zK3>
>
>
> As you can tell from the timestamps, these are just a minute apart, and
> NO change of password, etc. was involved.  Simply changing from the
> local network to LTE causes the problem.  This worked flawlessly prior
> to the password update, and I'm scratching my head as to why this is
> problematic.  I'm thinking it's got something to do with certificates,
> but again, all this worked before, and none of my certificates have
> changed; only the password changed.
>
> Any insight as to why this behavior would be shown now, and any thoughts
> about remedy?
>
>
> Thanks!
>
>    -- Chad
>
>
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