92195 - Dns stops resolving names in mail

Status: VERIFIED DUPLICATE of bug 162871

(MailNews Core :: Networking, defect)

Description

[Francisco León]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010721
BuildID:    2001072104

From bug 84580
Hmm... this may be what happens with all those connection refused modal windows
i get when checking mail. After some time, i always get that, and manually
hitting the get message button automatically displays a connection refused
window. Mozilla CANT know that fast if my server is up or down, but the server
is up and after hitting lots of times the get mail button it finally downloads mail



Reproducible: Sometimes
Steps to Reproduce:
1.Let mozilla download mail automatically



Actual Results:  Connection refused errors sometimes. Clicking on get mail
automatically says the same, without even checking

Expected Results:  The opposite

Comment 1

[R.K.Aa.]

Francisco: Still seeing this?

Comment 2

[Michal]

I have a possible additional description (If it is the same bug...)

My ISP's pop server resolves to two A records in DNS. One day, one IP address
(The first one) stopped accepting connections. Mozilla mail was popping up the
"Connection Refused " warning dialog as described in this bug.

So I did "telnet pop.myisp.com 110"  I got back:

telnet pop.myisp.com 110
Trying ss.vv.nn.xx...
telnet: connect to address ss.vv.nn.xx: Connection refused
Trying qq.ww.ee.rr...
Connected to pop.myisp.com.

So, when Round robin DNS (If correct term) is implemented, Mozilla mail 
doesn't try the second IP address if the first one is failing.

Cheers, 
Michael

 

Comment 3

[Olivier Cahagne]

please reopen if you disagree.

*** This bug has been marked as a duplicate of 162871 ***

Comment 4

[benc]

VERIFIED/dupe.