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Exchange 2007 mobile phone email no longer can relay mail.

Posted on 2009-07-09
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Last Modified: 2012-05-07
Mail can be received to phone however sending generates MAILER-DAEMON failure.
Barracuda SPAM firewall generates the following:

#< #5.0.0 X-Spam-&-Virus-Firewall; host xxx.xxx.xxx.xxx[xxx.xxx.xxx.xxx] said: 550.5.7.1  Unable to relay (in reply to RCPT TO command)> #SMTP#

I'm wondering if there may have been a certificate failure or my send connectors are not configured properly.

The phone was able to send a while ago.  Nothing other than Windows updates were applied to the server.
Used an iPhone to test the account with the same results either POP3 or IMAP4.

In an attempt to resolve this issue I've installed SP1 to the Exchange 2007 last week.
Didn't help.


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Question by:Ambonia
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Expert Comment

by:Alan Hardisty
ID: 24815156
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Author Comment

by:Ambonia
ID: 24816453
Thank you.  Yes the Rollup 8 has been applied yesterday.  The email still has not been able to relay properly.
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Expert Comment

by:Alan Hardisty
ID: 24816982
Are you using Activesync to send emails on the phone or POP3 / SMTP?  Just want to confirm - looks like POP3 / SMTP.
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Author Comment

by:Ambonia
ID: 24817062
Yes we are using Activesync and it has been working quite well prior to this issue.
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Author Comment

by:Ambonia
ID: 24817072
Oh wait, we are actually using both.  Activesync, POP3 and IMAP4.  Sorry been a long few days.....
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Expert Comment

by:Alan Hardisty
ID: 24817176
Sure - I understand.
Okay - Activesync can be ruled out as it does not use SMTP, so do the phones have Activesync and SMTP / POP3 accounts and the SMTP / PO3 accounts have the problems?
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Author Comment

by:Ambonia
ID: 24817302
No, on this phone I first installed the POP3 mail client which worked up to the time of this particular challenge.  I then deleted this client and attempted to use the IMAP4 whic h also received mail but could not send.
Next I used my iPhone to connect first via POP3, then IMAP4, and finally Activesync.  The activesync works, slowly but it works the POP3 and IMAP4 do not.  Alas this user does not have the option to connect via Activesync.
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Expert Comment

by:Alan Hardisty
ID: 24817405
Okay - SMTP would normally have to be the SMTP server of your Mobile Carrier.  What are you using?
If you are using your wnn SMTP server address, are you authenticating to it?
Can you provide me with your domain details (either here or email me via my profile if you don't want to share with the world).  I will run some tests to see where the problems might lie and report back on her with my tests and the findings (for the benefit of future people trying to find solutions).
 
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Author Comment

by:Ambonia
ID: 24817599
I'll set up a test account for you and send you the details.  It will take a little while since I'll be traveling to a new site.  I'll let you know when it is setup.
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Expert Comment

by:Alan Hardisty
ID: 24818130
I don't specifically need a test account - just the domain details please.  Obviously happy to test SMTP via a test account, but was not thinking of this or requesting it.  Your call if you want to.
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Expert Comment

by:Alan Hardisty
ID: 24819241
Should the mail server at the IP address you email me starting 216.x.x.x accept mail for the domain vent........com?
If it should, your barracuda is not configured to accept mail for this domain - it comes back with 'No Such Domain at this location'.
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Author Comment

by:Ambonia
ID: 24819377
Well actually yes.  Normal mail flows through the Barracuda to the users without error.  There is some challenge when the mail is sent from a mobile client.

You should be able to send to administrator at the domain I sent you normally.  If i send username@216.x.x.x of course nothing happens.

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Expert Comment

by:Alan Hardisty
ID: 24819395
Still get - "No such domain at this location" despite the response after HELO coming from barracuda.vent.......com!
Your Barracuda is not setup properly by the looks of things.
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Expert Comment

by:Alan Hardisty
ID: 24819470
This link to the Domain management on the Barracuda might help:
http://www.barracudanetworks.com/ns/products/spam_screenshots.php?p=&id=22 
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Expert Comment

by:Alan Hardisty
ID: 24819632
Sorry - my mistake - can't spell you domain name.
Will carry on with this tomorrow - it's late!
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Author Comment

by:Ambonia
ID: 24819642
Thanks
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Accepted Solution

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Ambonia earned 0 total points
ID: 24843241
Alan.  Thanks for your assistance.  Over the weekend I found a document with Microsoft regarding Exchange 2007 SP1 that after applying the patch I needed to create a new Receive Connector to allow Anonymous Relay.  I applied this and the cilent can now send mail from her mobile device while pointed at the SMTP server of our domain.

Here is the link:  http://technet.microsoft.com/en-us/library/bb232021.aspx
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LVL 76

Expert Comment

by:Alan Hardisty
ID: 24843277
Oh well - the fact that you have the solution is the most important thing.  Sorry I did not manage to solve it for you but well done on finding the solution yourself.
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