Operational Defect Database
BugZero found this defect 2201 days ago.
Data sources
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WatchGuard Technologies | kA10H000000g3d9SAA
Email delivery intermittently fails through IMAP proxy
Last update date:
5/10/2018
Affected products:
Firebox M200
Firebox M300
Firebox M270
Firebox M370
Firebox M470
Firebox M570
Firebox M670
Firebox M290
Firebox M390
Firebox M400
Firebox M500
Firebox M440
Affected releases:
All
Fireware
12.x
12.0.x
12.1.x
12.1
12.1.1
Fixed releases:
All
Description:
Issue
If you configure the IMAP proxy for outbound client connections to an IMAP server, delivery of emails could fail with a log message error that looks like this: 2018-04-22 12:50:52 imap-proxy imap_parse_rsp_arg: fail to parse fetch argument list='(UID 3520 RFC822.SIZE 7283 FLAGS (\Seen) ENVELOPE ("Thu, 22 Apr 2018 09:05:01 +0300" "message subject"........1340 FETCH (UID 3521 RFC8'. DebugThe user will see a failure message from their email client (the message will vary among email clients).
Workaround/Solution
If the issue occurs in your environment, you could consider using a packet filter instead of the IMAP proxy until this issue is resolved and the IMAP proxy can be re-enabled
