[Dovecot] dovecot: pop3-login: Disconnected (tried to use disabled plaintext auth): method=PLAIN

[Jerry]

On Thu, 27 Jan 2011 17:48:13 -0800
Mark Sapiro <mark at msapiro.net> articulated:

> On 11:59 AM, John Espiro wrote:
> > 
> > On 1/27/2011 7:56 PM, Mark Sapiro wrote:
> >> Are you able to get your mail via your pop client?
> > Yes.
> >> If so, the log messages are from other attempts (probably by
> >> crackers trying to guess passwords on your system) to log in. Is
> >> there a "rip=" in the log messages giving the IP of the
> >> originator? If so, is it yours?
> > There is a "rip" and it's my IP address.  I've got fail2ban and
> > denyhosts running very tightly, and so far, no one has even
> > attempted to log in to my mail accounts (ssh is a whole other
> > story :)
> 
> 
> So you successfully get mail via your pop client in spite of the
> above.
> 
> My guess is somehow the client first tries plain authentication
> without STARTTLS before trying STARTTLS.
> 
> In my case with pop3 and T'bird I use
> 
> Port 995
> Connection security: SSL/TLS
> Authentication: Normal password
> 
> I haven't tried port 110 and STARTTLS (mostly I use IMAP anyway).

I honestly don't know why you would use port 995 as opposed to 110 if
employing STARTTLS. Switch to port 110, I don't know if a restart is
required, and try again.

-- 
Jerry ✌
Dovecot.user at seibercom.net

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