[Users] Duplicate messages and crashes

[Paul]

On Tue, 3 Nov 2015 11:03:57 +0100
gabble <gabble at gmx.com> wrote: 

> servers. for the webaim list that stared the whole thing i use
> gmx.com and i do have several addresses there. but it has also
> happened with other mail servers. the thing sort of spread. not
> that it is impossible that several servers are poorly configured,
> maybe it's even likely.

Check the debug output, you will see something there relating to UIDL.
Share what it says regarding UIDL or uidl.

(Don't Cc me in you response. You must be subscribed to post here, so
I will see your response without getting a Cc'ed copy.)

with regards

Paul