I have been looking at this all morning, and its driving me nuts.  Perhaps you all can see something I am missing.

roundcube 1.1.3 (same with 1.1.2)

One user I am aware of, of some 700 registered, has this issue.  I hope someone has some suggestions.  He can't send mail.  At all.

I enabled all the logs, userlogins shows him connecting, imap shows him fetching mail, session shows his session, sql shows the address book lookups, errors shows nothing, and when I hit send, there is no data being put in smtp or sendmail.  The "sending mail" spins until it times out at 90 seconds, then the message just sits there.   None of the logs reflect anything, php error log doesn't add a line at all.  Apache error log shows this:

[Fri Oct 09 11:00:29 2015] [warn] [client xxx.xxx.xxx.xxx] mod_fcgid: read data timeout in 91 seconds, referer: http://www.syix.info/roundcube/?_task=mail&_action=compose&_id=1339993062561800597488d

[Fri Oct 09 11:00:29 2015] [error] [client xxx.xxx.xxx.xxx] Premature end of script headers: index.php, referer: http://www.syix.info/roundcube/?_task=mail&_action=compose&_id=1339993062561800597488d

Last couple of lines in access.log

xxx.xxx.xxx.xxx - - [09/Oct/2015:10:58:58 -0700] "POST /roundcube/?_task=mail&_unlock=loading1444413531122&_lang=en_US&_framed=1 HTTP/1.1" 500 536 "http://www.syix.info/roundcube/?_task=mail&_action=compose&_id=1339993062561800597488d" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0"

xxx.xxx.xxx.xxx - - [09/Oct/2015:11:03:40 -0700] "POST /roundcube/?_task=mail&_unlock=loading1444413813616&_lang=en_US&_framed=1 HTTP/1.1" 500 536 "http://www.syix.info/roundcube/?_task=mail&_action=compose&_id=1339993062561800597488d" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0"

Tested his account with another imap client, it works normally.  I can't see anything strange in his settings, and its only roundcube that seems to have this issue.   Changed his password with no effect. 

Any thoughts?

Dave Overton, Owner

SYIX.COM

dave@syix.com

530-755-1751

FAX 530-751-8871