[Tickets #5054] IMAP backend filter rules can't modify/delete mails

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Ticket URL: http://bugs.horde.org/ticket/?id=5054
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 Ticket             | 5054
 Created By         | kent at cpttm.org.mo
 Summary            | IMAP backend filter rules can't modify/delete mails
 Queue              | Ingo
 Version            | 1.0.1
 Type               | Bug
 State              | Unconfirmed
 Priority           | 2. Medium
 Owners             | 
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kent at cpttm.org.mo (2007-03-01 17:28) wrote:

I've setup a filter rule (IMAP backend) to mark as seen (or delete) mails
containing the word "[SPAM]" in their subjects, but it is not working. The
rule is activated (as I can see the notes saying some mails have been acted
on) but the mails are still in the inbox unchanged. 

After some investigation I found that reason is that it is using the
EXAMINE imap command to open the inbox instead of SELECT. As a result, the
inbox will be marked as read-only. The protocol log is shown below. I am
using ingo1 (1.0.1-1sarge1) on Debian.

# <1172543865<00000008 EXAMINE INBOX
# >1172543865>* FLAGS (\Answered \Flagged \Draft \Deleted \Seen Junk
NonJunk)
# * OK [PERMANENTFLAGS ()]
# * 2 EXISTS
# * 0 RECENT
# * OK [UNSEEN 2]
# * OK [UIDVALIDITY 1149562632]
# * OK [UIDNEXT 50118]
# 00000008 OK [READ-ONLY] Completed
# <1172543865<00000009 UID SEARCH UNDELETED SUBJECT [SPAM]
# >1172543865>* SEARCH 50116 50117
# 00000009 OK Completed (2 msgs in 0.000 secs)
# <1172543865<0000000a UID STORE 50116,50117 +Flags (\Seen)
# >1172543865>0000000a NO Permission denied
# <1172543865<0000000b STATUS INBOX (MESSAGES RECENT UNSEEN UIDNEXT)
# >1172543865>* STATUS INBOX (MESSAGES 2 RECENT 0 UIDNEXT 50118 UNSEEN 1)
# 0000000b OK Completed
# <1172543865<0000000c LOGOUT
# >1172543865>* BYE LOGOUT received
# 0000000c OK Completed