[Expired for thunderbird (Ubuntu) because there has been no activity for
60 days.]
** Changed in: thunderbird (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1490293
Title:
STARTTLS Handshake problem introduced in 1:31.8.0+build1
Status in thunderbird package in Ubuntu:
Expired
Bug description:
I am running trusty. After the update from 1:31.7.0+build1 to 1:31.8.0+build1
i suddenly was no longer able to send mail via my provider.
The mail server is running exim and uses STARTTLS for connection encryption.
When hitting the send button, Thunderbird informed me that it is connecting to
the mail server, immediately followed by a popup informing me that sending
failed due to an "unknown error" and that I should talk to my network admin.
I then made sure they had not changed anything in the exim server
config (for quite some time actually). When I tried to send mail, the
server would just have an entry in its log like this:
2015-08-30 15:35:04 TLS error on connection from (my.host.some.where)
[176.198.xxx.yyy] (gnutls_handshake): A TLS packet with unexpected
length was received.
Sending mail from Android or with Evolution still works.
I then grabbed a backup and downgraded thunderbird to the previous
version 1:31.7.0+build1. The problem went away immediately.
A simple test using
#> openssl s_client -connect mail.my.provider.com:25 -starttls smtp
does not exhibit anything uncommon, the handshake goes through without
a hickup.
Since thunderbird is not totally uncommon (although noone else seems
to have complained yet), I could arrange a test login for anyone
willing to run an investigation on the issue. I just don't want to
publish server names or IPs here.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1490293/+subscriptions
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