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bail364

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Exchange outside emails not being recieved

Hello Everyone,
I am hoping someone can help with this issue. We are in the middle of upgrading our network here. We moved from a business dsl to a t1 our ISP is Verizon for both. We upgraded from W2k3 SBS to Windows Server 2003 R2. Our email was being house by a third party via pop3. We migrated over to exchanged made all the the configuations and now we can send and recieved email internal and send out external but we can not recieved from the outside world. We have a just replaced out Cisco 871 with the SonicWall TZ190. I went to MXToolbox.com and it show the MX record pointing to our static IP but when I ran a dianostic the only this display was on the Banner it said Argument 'Length' must be greater or equal to zero. Can anyone please help
Exchange

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bluetab
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bluetab

It sounds like you moved your mail in-house to your new Exchange server, did you change the DNS mail record for your public domain to point to your new mail server? Also, have you configured the SonicWALL to forward port 25 (SMTP) to the Exchange Server?  
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bail364

ASKER

Yes to both questions. We actually called Sonic support to double check all are setting on the firewall. Another thing we have done is purchased another domain name for testing reasons to eliminate down time. We purchased the domain name off of penguinhost.com and had them change the MX. This one is really kicking our butts and we are on a time frame. Thank in advance for your help and time.
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bail364

ASKER

Note:
I just tried to Telnet mailsrv 25 and I was unable to connect to it. I can connect to port 110.
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bluetab

Glad you were able to get it working
Exchange
Exchange

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

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