1263295 - Thunderbird network preferences > No proxy for: settings are ignored.

Status: RESOLVED DUPLICATE of bug 1230823

(MailNews Core :: Networking, defect)

Description

[Robin]

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160321091500

Steps to reproduce:

Set up Thunderbird on a machine running TB 35 (I think) it works great.   Moved user home directory to a new machine with TB 38, and TB refuses to connect to Davmail.  Davmail is the same one that is working with TB35.

If I use any proxy settings, I cannot connect to Davmail running on localhost.  Same account, different versions of Thunderbird.  Configure proxy settings as required for getting through corporate firewall for any web data.

During testing I found that local host or 127.0.0.1 were being blacklisted.  Even though localhost and 127.0.0.1 were in the preferences for "Manual Proxy", "No proxy for:", localhost or 127.0.0.1 were being blacklisted.

If I turn off proxy, then mail works as expected.  There never was any issue sending mail.


Actual results:

Thunderbird wouldn't connect to the davmail host running on localhost or 127.0.0.1 or any other host I set up.  Same davmail and TB user data directories for both versions of TB.

From debugging attempts I have these log bits.

[localhost], host record [7fc9de6c25e0].
-296753408[7fca09654da0]: Successfully adding address [127.0.0.1] to
blacklist for host [localhost].

   From a different debugging attempt


1483392832[7fcc572b0380]: add word: localhost
1483392832[7fcc572b0380]: adding word to corpus store: localhost
(Trait=2) (deltaCount=253)
1483392832[7fcc572b0380]: nsSocketTransport::Init [this=7fcc2e80f180
host=localhost:1110 proxy=webproxy.XXX.XXX:8080]

1006626560[7fcc572b0c80]: nsSocketTransport::ResolveHost
[this=7fcc2e80f180 localhost:1110]
1006626560[7fcc572b0c80]: Resolving host [localhost].
1006626560[7fcc572b0c80]:   No usable address in cache for host [localhost].
1006626560[7fcc572b0c80]:   DNS lookup for host [localhost] blocking
pending 'getaddrinfo' query: callback [7fcc2b81d200]

721413888[7fcc2cf9c580]: DNS lookup thread - Calling getaddrinfo for
host [localhost].
721413888[7fcc2cf9c580]: DNS lookup thread - lookup completed for host
[localhost]: success.
721413888[7fcc2cf9c580]: Caching host [localhost] record for 60 seconds
(grace 60).
1006626560[7fcc572b0c80]: Checking blacklist for host [localhost], host
record [7fcc2b83e3d0].

Turning proxy settings off allows Thunderbird to connect to Davmail on localhost.




Expected results:

Thunderbird can connect to localhost or 127.0.0.1 if they are listed in the "No proxy for:" box.

May be related to this bug.
https://bugzilla.mozilla.org/show_bug.cgi?id=1230823

Comment 1

[Robin]

I mark this as major as it most likely will prevent TB from working properly with no proxy enabled when required.

Comment 2

[Robin]

Today I was trying to check for add-ons, lightning in particular and it was impossible.

TB cannot do any network checks through the firewall as webproxy is turned off.

I normally use text email (old preference) but there are times when I need to see remote content.  This is impossible.

Comment 3

[Fuujuhi]

I confirm I have the same issue on TB 38 / ubuntu.

Comment 4

[Wayne Mery (:wsmwk)]

Does it work with version 31?
http://archive.mozilla.org/pub/thunderbird/releases/31.8.0/win32/en-US/
http://archive.mozilla.org/pub/thunderbird/releases/31.8.0/linux-x86_64/en-US/

Comment 5

[Robin]

I would have to install it on the machine which is at work.

I will test, hopefully tomorrow or Thursday.

Comment 6

[Robin]

Finally had time to test 31.8.  It worked as expected.  31.7 was what I was testing with before I upgraded.

45.1.1 doesn't work.

Same symptoms as I reported 2016-04-14.

Comment 7

[Fuujuhi]

I tested 31.8.0/linux-x86_64, and indeed the proxy setting "No proxy for:" works as expected.

Comment 8

[Wayne Mery (:wsmwk)]

Should be the same as bug 1230823