[Dovecot] Issues with VANISHED CHANGEDSINCE

[Michael J Rubinsky]

I've been seeing the following wonky behavior with Dovecot. Currently this is with Dovecot 2.0.19, but I was also seeing it in earlier versions as well, including versions from the 1.x series. Some background, this is from Horde's ActiveSync library, when it is trying to determine what UIDs have recently been expunged. I can guarantee that when this command was sent, there was only one or two emails that were removed since the provided MODSEQ value.

C: 8 UID FETCH 1:* UID (VANISHED CHANGEDSINCE 587742)






<quote>


a uid fetch 1:* UID (VANISHED CHANGEDSINCE 53881)
* VANISHED (EARLIER) 1:37308,37310:40788,40791:41032,41034:41083
a OK Fetch completed.
b uid fetch 1:* UID (VANISHED CHANGEDSINCE 53882)
* VANISHED (EARLIER) 41029:41030,41047:41083
b OK Fetch completed.
</quote>


Thanks for any guidance.
--
mike

The Horde Project (www.horde.org)
mrubi...@horde.org

S: * VANISHED (EARLIER) 1:119944,119947:123482,123484:128043,128045:130388,130390:130456,130458:132127,132129:135832,135834:136201,136203:136301,136303:136316,136318:138502,138504:140099,140101:141908,141910:142607,142609:142744,142746:142865,142867:143160,143164:143173,143176:143179,143181:143187,143189:143190,143192:143195,143197:143270,143272:143273,143275:143280,143282:143302,143305:143307,143309:143318,143320:143333,143335:143337,143339:143341,143343:143375,143377:143400,143402:143551,143553:143637,143640:143706,143708:144069,144071:144178,144180:144307,144309:144316,144318:144329,144331:144931,144933:144983,144985:145000,145002:145069,145071:145072,145074:145132,145136:145178,145180:145191,145193 Also, to verify it wasn't something screwy with my server, Michael Slusarz provided me with this from his server: There's definitely something wonky going on in the code. There's a certain tipping point of modseqs where the values become incorrect. For a mailbox with HIGHESTMODSEQ of 54004, I see this:

smime.p7s
Description: S/MIME Cryptographic Signature