687784 - IMAP tag sync becomes unreliable when more than 10 tags are used

Status: RESOLVED INVALID

(MailNews Core :: Networking: IMAP, defect)

Description

[bozzunter]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_1) AppleWebKit/534.48.3 (KHTML, like Gecko) Version/5.1 Safari/534.48.3

Steps to reproduce:

I create more than 10 tags in order to flag my messages. Besides, I send tagged messages to an IMAP account, so that my colleagues (with the same address) can see them and know what to do.


Actual results:

Tags are perfectly synched until we have 10. If we exceed the number, synchronization becomes erratic, i.e. some are seen, some others are not. With this I mean that I tag a message, I send the message to the IMAP account and my colleagues see the message but not the tag: this problem happens with ALL the tags as soon as 10 is exceeded, it's not only affecting the tags after the 10th.


Expected results:

All tags should be synched as it happens when we have less than 10.

We're using a mix of TB 6.0.2 and TB 7 beta, but the bug is still there.

Comment 1

[Ludovic Hirlimann [:Usul]]

Can we get an imap log to see what we are sending when this happens (see https://wiki.mozilla.org/MailNews:Logging) ?

Comment 2

[bozzunter]

Attachment: IMAP log of Bozzunter

Comment 3

[bozzunter]

Attachment: IMAP log of Gus

Comment 4

[bozzunter]

You can find two logs while the problem was reproduced. Bozzunter added a tag INSTRUCCIONES to a message and sent it to IMAP, where the tag disappeared. Then he manually tagged the message and it was seen by Gus. Gus sent another message, tagged as INSTRUCCIONES, and the tag disappeared. Then Bozzunter sent a message to IMAP tagged as ASIGNEU and it was seen.

Comment 5

[Wayne Mery (:wsmwk)]

Gene, does anything in the log suggest the cause? Server not supporting >10 tags?

Comment 6

[gene smith]

I'm not seeing anything in the logs attached above that tells me much. But I tested last night with more than 10 tags on a cyrus courier imap server as the reporter was using, per the logs. I think I am seeing problems when I go above 10 but need to check some more. Will provide more details in next comments.

Comment 7

[gene smith]

Corrected above: reporter was using courier imap server (not cyrus).
Above a certain number (somewhere above 10, not exactly 10) courier stops returning new user defined keywords in the PERMANENTFLAGS and FLAGS select responses. So tag previously set won't show up. Seems to be a server problem.
When I do the same exercise using dovecot, I don't see the problem. I can create/set 14 tags (more than the number I set testing courier) on message on tb instance A and see them all set on tb instance B (assuming instance B has all the tag defined in "Manage Tags" dialog.
So marking this bug INVALID.

Comment 8

[gene smith]

Here's another somewhat off-topic item related to keywords/tags that I've noticed.
Once custom keywords are created in tb and applied to message(s) and then stored by the server, there is no way specified by imap RFCs to get rid of them. So if I store 100 keywords (tags) on a message or between different messages in an imap account, the PERMANENTFLAGS response from the server will contain all 100 keywords strings listed each time it occurs (i.e., on imap SELECT). This occurs even if all tags are removed from all messages in the account.
Re: https://www.dovecot.org/mailman3/archives/list/[e-mail]/thread/BK2RXZFBPSNCJPZDXJ4BN3PDBIOCFAHG/