Aw: Re: OT - Finding/removing duplicate emails - WAS: Re: [Dovecot] dovecot/lmtp munmap()-ing a lot

[Infoomatic]

> >> On 6/9/2014 5:44 PM, Ralf Hildebrandt <r at sys4.de> wrote:
> >>> That's probably the problem here. The user had LOTS of (duplicate!)
> >>> mails in his inbox.

I had the same problem with a corrupted IBM Domino mailfile which gave me lots of duplicates, however imapsync with the options "--useheader Date --useheader Subject --skipheader X.*" to eliminate headers according to date+subject did the trick.

Alternatively you could have a look at the Thunderbird Addon "Remove Duplicate Message (alternate) 0.39" - havent used it on large IMAP folders but works also nicely.

hth,
infoomatic