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Setting up POP3 server in Exchange 2003

Posted on 2011-09-03
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Last Modified: 2012-05-12
I recently added mail for a second domain to our Exchange Server running Exchange 2003 Sp2. I enabled POP3 and IMAP protocols, opened the ports in the RRAS firewall, and created the new address rule in the Sytem Management console. When using an Exchange account from within the network, it all works great. When I use POP3 or IMAP from outside the network, I can connect to the account with Outlook's "Test Account Settings", but when I got to Send and Receive, the send new messages completes, but it hangs on receiving. Then it eventually times out with the 0x8004210A error. I can telnet the pop3 server, even authenticate a user and list then retrieve an individual mail. But no go in outlook or with an Iphone. Any help would be greatly appreciated.
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Question by:riley71
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by:jimbecher
ID: 36478716
  What version of Outlook? There were problem with Outlook 2002. The other suggestion I have seen is temporatily disabling your virus sofware.
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by:riley71
ID: 36478754
Outlook 2003 on some clients and 2007 on others. In the server itself there is no virus protection at this point. There was a copy of Symantec Corporate Edition 10.1 but only the management console was present. I uninstalled it and no Symantec services are started, nor are any processes running.
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by:jimbecher
ID: 36478786
  All of these are "is it turned on" moves but you have checked the services and the Exchange POP 3 service is running? You port forwarded POP3 (port 110) to the IP address of the Exchange Server and opened the port on the firewall?

   Do you have a port scanner that you can run on one of the external computers to verify that port 110 is truely open on the server?
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by:riley71
ID: 36478842
OK,  For some reason it will connect to an IMAP account. Mail is flowing both ways. However, my queue is stuffed with outgoing messages from other domains. I'm assuming this is relaying.. I'll close that up. Thanks for looking at this with me. I'll continue to work the pop3 protocol with the suggestions you provided.
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by:riley71
ID: 36500279
OK. A couple of days later and still racking my brain. I can connect to the POP3 accounts with iphones, but not with Outlook 2003 or 2007. It will send smtp mail, but hangs while downloading incoming mail. The error code generated refers to issues with virus scans in google searches. I have no virus scanning software on the server, and I have completely removed it from my laptop. Still no go. Could it be a problem with authentication?
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by:jimbecher
ID: 36502202
  You have a wierd one going. If I read your previous posts correctly the "Test Account" in Outlook works on the POP3 which to me wold me the authentication is fine. It is almost as it it were a transport error. In your oroginal post you said iphones wouldn't connect either but your last past mentioned that they could now. What did you change to get the iphones to work via POP3?

Can you post the exact message a Outlook client is giving you?


See if this is applicable:
http://support.microsoft.com/default.aspx?scid=kb;en-us;816896
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by:riley71
ID: 36502921
All of the protocols worked great until I added e-mail addresses from a second domain. A couple of days ago I uninstalled Exchange and started over. After I reinstalled, the phones would connect over IMAP. I can also connect Outlook over IMAP, but it is extremely slow and hangs when opening mail. Sometimes it will popup a message saying the server didn't respond in a timely fashion so the connection is now closed.

Anyway, Outllook over POP3 will send messages then hangs when trying to receive. The exact message says, "!Task ',mail.domainname.com-Receiving' reported error (0x8004210a): 'The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet Service Provider (ISP).'

Another thing I have observed. If I go to Exchange and delete the account and re-add it, Send and Receive will complete with no errors with an empty mailbox. As soon as the mailbox has mail in it, the errors start.

This particular client of mine is in a remote location where a T1 line is unavailable to them. They have a radio based ISP that has a 1.5 mb upload and a 7 mb down. Could it be packet loss due to the ISP? It did work well before I added the second domain?? I'll check out the link you posted.
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by:jimbecher
ID: 36503665
  Wow you had a whole lot going on at once. All I can do is ask a few more questions. After you re-installed Exchange did you immediately turn around and put on Service Pack 2?

   By "adding a second domain" you really didn't do much else other then add a second smtp e-mail address to existing users right? So do the users now have two e-mail addresses? mail@domain1.com amd mail@domain2.com? Did the actual users of this second mail domain already exist in the active directory?

   From what you are describing it sounds like everything went to the dogs when you added the second domain I just can't put my finger on what that would have to do with anything. Have you set up one of the POP3 accounts outside the LAN but not on their Radio Based ISP (something like on Comcast) to eleviate their wireless ISP as being the problem?
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by:riley71
ID: 36503893
Interesting questions. Yes, I immediately installed sp1 and sp2. When everything worked well, there were no service pack installations. I installed the service packs to get intelligent message filtering since they were beginning to get a large abount of spam.

On the second question, yes, I added a second e-mail address policy. The thing here is, the two domains are hosted at different companies. At both hosts, I pointed the mx 10 record to our IP address. This isn't causing any conflicts, is it? Our domains are mail.shepherdeggs.com and mail.muscleegg.com. Both resolve to our ip address, but I wondered if this would be a problem.

I suspect the ISP because the connections are so slow and IMAP keeps closing the connection due to response times.

I tried the fix in the microsoft support link you posted earlier, but no go.
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by:jimbecher
ID: 36504134
  For what it is worth that is the way I would have added the second domain too. I would not think forwarding multiple mx domain records to the same IP address would be an issue. I would tend to agree that it seems to be a bandwidth issue. IMAP times out and Outlook can "Test Account" and send/receive until there is actual mail to retrieve.

   I would proceed to try Outlook connected to something other then the wireless IP. I don't know if this is a violation of EE policy (I guess I'll find out :) but I'd be happy to test the theory is you want to set up a dummy e-mail account I could access. I am on FIOS. 35/35. Who needs that LOL!  
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Author Comment

by:riley71
ID: 36504285
test account is:

jbecher@shepherdeggs.com

username:     jbecher
password:    password

Hopefully unlike a public forum, I won't get a ton of spam in the next little bit. I'll leave it on until you respond. Thanks for the look.
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by:jimbecher
ID: 36504531
Well... we just uled out the wireless ISP as being the problem. I had the excat same results. I am using Outlook 2007. The "Test Account" flew like a champ but crashed when doing a receive.

The only difference is I got a different error. Receiving reported error 0x800CCC0B. Unknown error. Let me play with a couple different pop settings.....
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by:riley71
ID: 36504651
Hmm,   Maybe I was a little unclear in my explanation. The server itself is on a wireless connection. It's a radio ISP that has been known to throttle our speeds back when we reach a certain data quota on a daily basis. We have paid them for extra bandwidth to stop them from doing this, but our upload speeds range anywhere from 384k to 1.5mb. They are in a remote location that doesn't have access to Comcast, Verizon, or Century Link.  With 8-12 Pop clients in off site locations, could this present us with a bandwidth issue that could cause the crashes?
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by:jimbecher
ID: 36504806
  Sorry. I had it bass-ackwards. Wow having a Exchange Server on a throttled wireless can really be a problem! I have a couple personal friends stuck with Disk Satellite and when they hit the limit they just turn off their computers. Is there a web page you can hit or even for that fact call them and see it you are currently being throttled?

   You made reference to having a bunch of stuff in your outbound queues earlier. Would it have been enough to trip your limit?
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by:riley71
ID: 36505214
I'm onsite now. The current download speed is 7.5 and the current upload is 3.12mb. This is actually quite a bit faster than a T1, but that is the speed right now. The throttle is reset every 24 hours, and the relaying issue was resolved on Tuesday. I just learned the neighbor across the road has a T1. Just not our side, I guess. I might try throwing a cat5 across the road and see if they will let me borrow an ip from their block of 5. Or for that matter, haul the exchange server over there and see if that solves the problem.
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by:jimbecher
ID: 36505358
Wow what a pain. I have port scaned your IP address and 110 is open. I verified the MX records of both your domains and they do resolve to the same IP address. I increased the timeout value in my Outlook to 10 minutes and it made no difference. I will leave the account you gave me in my Outlook until you tell me to nuke it. Keep me posted.
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by:jimbecher
ID: 36507517
FYI it is 9:00 pm (EST) and the account started bounceing on either the username or password...
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by:riley71
ID: 36507788
I ended up buying an SSL cert and configuring rpc over https. This caused a bunch of problems in and of themselves since Outlook 2007 has known issues with Exchange 2003 OWA, but I worked through them. We are connecting now. I shut the POP server down at about the time you started bouncing. I don't know if I should give up at this point or continue to try to resolve. I may just advise them to move to SBS 2008 with Exchange intergrated since they only have 20 users anyway. I'll think about it over the weekend and let you know. Thanks for all the help
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riley71 earned 0 total points
ID: 37177791
I added the SLL cert to the POP3 server in IIS. Now all of a sudden POP mail flows? Wierd. Anyway, thanks for all of the assistance a few months ago.
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Author Closing Comment

by:riley71
ID: 37313495
I will strongly recommend upgrading to Echange 2007 in the future. It seems like there are less headaches when configuring Web OWA and Exchange ActiveSync,
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