[BlueOnyx:14684] Re: After YUM Update

[Michael Stauber]

Hi Lew,

> On a bunch of our client's PCs (XP and W7) we have Thunderbird installed 
> (v2-v24). Many of these are configured in Thunderbird to use STARTTLS 
> for POP. These machines quit receiving email on Feb 14th with the status 
> line message in Thunderbird saying "Connecting to servername" staying up 
> forever. If we change Thunderbird Server Settings, Security Settings, 
> Connection security from STARTTLS to None email pours in.

Actually I'm using Thunderbird myself. Switch from "STARTTLS" to
"SSL/TLS" and it'll work like a charm.

The thing is that "SSL/TLS" didn't work in the past, but now it does.

> /var/log/maillog shows this:
> dovecot: pop3-login: socketpair() failed: Too many open files
> dovecot: pop3-login: Disconnected: TLS initialization failed. (no auth 
> attempts): rip=xx.xx.59.66, lip=xx.xx.6.130

That's actually a different issue. Spot the "too many open files".
Somehow you're hitting the limit on the number of open files for the OS
and that's throwing a wrench into things.

-- 
With best regards

Michael Stauber