1440354 - Unexpected EOF on command channel when sending email

Status: UNCONFIRMED

(Bugzilla :: Email Notifications, defect)

Description

[Rainer Plischke]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20180103231032

Steps to reproduce:

Created a (quite large) comment to an existing ticket. 


Actual results:

Email could not be sent. Error message (anonymized):
URL: ...
 There was an error sending mail from '[e-mail]' to 'XXXXXXXXXXXXX': error at during DATA: [Net::SMTPS] Connection closed

Traceback:

 at Bugzilla/Mailer.pm line 196.
	Bugzilla::Mailer::MessageToMTA(...) called at Bugzilla/BugMail.pm line 381
	Bugzilla::BugMail::sendMail(...) called at Bugzilla/BugMail.pm line 280
	Bugzilla::BugMail::Send(...) called at Bugzilla/Bug.pm line 1355
	Bugzilla::Bug::_send_bugmail(...) called at Bugzilla/Bug.pm line 1293
	Bugzilla::Bug::send_changes(...) called at /var/www/html/bugzilla/process_bug.cgi line 386

This issue is reproducible on that ticket (also containing newer comments). With smtp_debug=on it is apparent that the closing "<CRLF>.<CRLF>" is missing:

[...]
Net::SMTPS=GLOB(0x5649b835f278)>>> You are receiving this mail because:
Net::SMTPS=GLOB(0x5649b835f278)>>> You are on the CC list for the ticket.=
[Thu Feb 22 16:30:02 2018] process_bug.cgi: Net::SMTPS: Net::Cmd::datasend(): unexpected EOF on command channel:  at /usr/local/share/perl/5.22.2/Email/Sender/Transport/SMTPS.pm line 162.

Email sending works properly for other tickets.

Issue could not be reproduced by copying the comment text to e.g. a new ticket, so there was probably a special character in it?


Expected results:

Email should have been sent successfully.