I'm using Claws Mail version 3.17.8 on Linux In last 4 month I received 3 messages, that I canno read. When click on them in message list then Claws-mail hangs. When launched with --debug it looks like this: procheader.c:174:generic_get_one_field: empty line procheader.c:174:generic_get_one_field: empty line procheader.c:174:generic_get_one_field: empty line message/rfc822 (offset:0 length:9754 encoding: 6) multipart/alternative (offset:4657 length:5097 encoding: 6) text/plain (offset:4784 length:970 encoding: 3) text/html (offset:5881 length:3831 encoding: 3) procmsg.c:1952:Setting flags for message 34446 in folder inbox/gmail procheader.c:174:generic_get_one_field: empty line procheader.c:174:generic_get_one_field: empty line procheader.c:174:generic_get_one_field: empty line message/rfc822 (offset:0 length:9754 encoding: 6) multipart/alternative (offset:4657 length:5097 encoding: 6) text/plain (offset:4784 length:970 encoding: 3) text/html (offset:5881 length:3831 encoding: 3) hooks.c:70:registered new hook for 'avatar_header_update' as id 1 procheader.c:174:generic_get_one_field: empty line messageview.c:1291:found part 6/alternative procheader.c:197:generic_get_one_field: empty line textview.c:692:TIMING textview_add_part : 0s000ms textview.c:658:TIMING textview_add_part : 0s000ms textview.c:1165:Viewing text content of type: plain (length: 822) I located files related to this messages on a disk. I copied it to another account. And they can be easily opened. Removing all plugins doesn't help.
*** Bug 4463 has been marked as a duplicate of this bug. ***
There have been 2 or 3 reports about this in addition to yours. Example messages have been provided, but every time the messages open exactly as normal for me. I'm inclined to close this bug report as WORKSFORME, but will leave it open for now just in case some useful information can be provided.
It happens from time to time on current versions as well. If You could describe me step how to better debug it. Then I can do it as well.
*** Bug 4476 has been marked as a duplicate of this bug. ***
(In reply to Emilian from comment #3) It's possible that the bug is in pango. Here I am using 1.48. If you are not using this version of pango, upgrade it and test.
*** Bug 4507 has been marked as a duplicate of this bug. ***
Since Bug 4507 which I reported does appear to be a duplicate of this bug; I'll add some extra notes here: I am using Pango 1.48, and I made sure I had the latest version (1.48.7) for my distro installed and restarted Claws, and still saw the issue. Also I see the following in the --debug output for a message that hangs: > procheader.c:197:generic_get_one_field: empty line > textview.c:692:TIMING textview_add_part : 0s000ms > textview.c:658:TIMING textview_add_part : 0s000ms > textview.c:1165:Viewing text content of type: plain (length: 580) And the following for a nearly identical message which doesn't hang: > procheader.c:197:generic_get_one_field: empty line > textview.c:692:TIMING textview_add_part : 0s000ms > textview.c:658:TIMING textview_add_part : 0s000ms > textview.c:1165:Viewing text content of type: plain (length: 580) > textview.c:788:TIMING textview_add_part : 0s002ms > textview.c:805:TIMING recursive_add_parts : 0s002ms > textview.c:851:TIMING recursive_add_parts : 0s002ms > textview.c:851:TIMING recursive_add_parts : 0s002ms > textview.c:631:TIMING textview_show_part : 0s002ms
*** Bug 4552 has been marked as a duplicate of this bug. ***