Re: [Evolution] Errors receiving mail via POP

[Zan Lynx <zlynx acm org>]

On 9/3/2014 5:45 AM, Pete Biggs wrote:
> I've never heard of a problem of IMAP duplicating emails and, knowing
> how the protocol works, I can't see how it can!

The protocol won't, but servers and clients will.

I've had Thunderbird (old version, now fixed) time out while copying 
large numbers of email messages from one folder to another. This 
resulted in copies of the message in both folders, because it didn't 
delete the messages until the copy was complete.

I've also had the server lose delete flags on abnormal client shutdown, 
which means that messages copied to another folder get resurrected, 
resulting in two. And when the filter runs again on next client startup, 
more copies are created.

So yeah, IMAP can make copies happen.