185186 - Unable to connect to IMAP server, may have exceeded maximum connections.

Status: RESOLVED FIXED

(MailNews Core :: Networking: IMAP, defect)

Description

[Moazam Raja]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.2.1) Gecko/20021130
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.2.1) Gecko/20021130

After upgrading to Mozilla 1.2.1 on XP from 1.0.1 on Linux, I can not check
email via my IMAP server properly.

I copied over my IMAP and Mail folders from my Linux installation. Whenever I
try to check email now, I get the error:

"Unable to connect to your IMAP server. You may have exceeded the maximum number
of connections to this server. If so, use the Advanced IMAP Server Settings
dialog to reduce the number of cached connections."

I've tried reducing to 0 and 1 and 2 (from 5), and I still get the same error. I
can check IMAP email via Outlook Express perfectly fine, so it is not a server
problem. The server is a Solaris machine running iPlanet Messaging Server.

Reproducible: Always

Steps to Reproduce:
1. Install Mozilla 1.2.1 on XP
2. Setup an IMAP account
3. Try to check email

Actual Results:  
"Unable to connect to your IMAP server. You may have exceeded the maximum number
of connections to this server. If so, use the Advanced IMAP Server Settings
dialog to reduce the number of cached connections."

Expected Results:  
Should have gotten my email from the IMAP server.

Comment 1

[Jason Belcher]

Yep, I'm seeing this as well. WinXP, Moz build 2002121708. No problem getting
mail in Outlook.

I noticed this a while ago, but I thought it was something to do with my
settings. But I'm now seeing it on a fresh install.

Comment 2

[Jussi Sirpoma]

I have seen this pretty frequently for the last couple of days after updating to
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030224. With
older builds it only appeared while mozilla was checking for new mail.

Comment 3

[Kjeld Borch Egevang]

I'm running Mozilla 1.5a.

I have 3 IMAP accounts (towards the same server) and get the same messages as
everybody else:

"Unable to connect to your IMAP server. You may have exceeded the maximum number
of connections to this server. If so, use the Advanced IMAP Server Settings
dialog to reduce the number of cached connections."

It seems to work fine if I have only 1 IMAP account. If I try to reduce the
number of cached connections to 1 it seems to work. Unfortunately the setup is
not saved and reset to 5 the next time I start Mozilla.

Comment 4

[James Paige]

I am seeing this on a computer running Mozilla 1.5
I have several other computers here also running mozilla 1.5 and connecting to
the same mail server, and none of them produce this error. changing the number
of cached connections makes no difference. I see nothing in the mail server's
logs that indicates what the problem might be.

This computer was previously accessing mail via POP3 but after removing the POP3
account and adding an IMAP-over-ssh account (pointed to the same user accoutn on
the same server)

As I say, this works fine for other client computers with the same setup on the
same version of Mozilla... the only think I can think of is that the profile is
a few versions old... (but so the profiles on some of the perfectly-working
computers)

Comment 5

[David :Bienvenu]

it sounds like we simply can't connect to the server, or the server is rejecting
our connection after initially connecting. Is this an SSL connection? Could
something be wrong at the SSL layer?

Comment 6

[James Paige]

Ah, let me correct what I said in comment 4. There IS something important
different about this computer. it has multiple IMAP accounts, not just one IMAP
account. (they were previously all POP accounts and then were all replaced with
IMAP accounts)

Comment 7

[James Paige]

bug 210479 describes similar symptoms

Comment 8

[David :Bienvenu]

OK, can you send me your prefs.js for that profile? Does setting up a new
profile with just one account work?

Comment 9

[David :Bienvenu]

do you also have usernames with '@' in them, and multiple accounts on the same host?

Comment 10

[James Paige]

I'll get a copy of the prefs.js this afternoon, and test with a clean profile
and with only one account.

And yes, the multiple accounts are on the same host.

Comment 11

[James Paige]

Oh, and no, there are no '@' signs in the usernames. They are purely lower case
alphabetic characters. No dashes, underscores, or even numeric digits.

Comment 12

[David :Bienvenu]

Attachment: fix for related problem

I don't know if this will fix your problem - this is a regression in 1.5, so
it's not likely. But it's definitely a bug, so I'm going to check it in today.

Comment 13

[David :Bienvenu]

fix checked in, r/sr=mscott over aim. BTW, 1.6 doesn't ever put up this error
message, from what I can tell. Please try tomorrow's 1.6 build and see if you
still have this problem, thx.

Comment 14

[john c. fowler]

I am seeing the exact same problem under 1.5.  One additional point, the
password manager seems to be disabled.  I am unable to manage passwords.  It was
working fine at first, but when the error started now I can't get into the
module.  The password manager quit prompting for the master password at startup,
and it appears that the password for the account is not being passed to the
server.  

Anyone seeing this?

Comment 15

[James Paige]

I just tried this morning's nightly trunk build 2003103108 and the problem was
gone on the computer I described in comment 4 . I did not remove any of the IMAP
accounts. Thanks, David!

Comment 16

[David :Bienvenu]

cool, marking fixed

Comment 17

[David :Bienvenu]

*** Bug 210479 has been marked as a duplicate of this bug. ***

Comment 18

[Paulstar]

I just downloaded "firefox-3.0a1.en-US.mac.dmg" / version 3 alpha 1 (20060512) and there it is again: "Unable to connect to your IMAP server. You may have exceeded the maximum number of connections to this server. (etc)" No problems with Apple Mail by the way.