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Smart host SMTP authentication over mail.btconnect.com

Posted on 2007-12-05
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Last Modified: 2013-11-30
Hello
I have an SBS 2003 downloading with POP3 connector (from client's registered domain) and sending out through smarthost (mail.btconnect.com). Day-to-day in and out flow of mail is ok (after registering client domain with BT Business!)... I then configured mail forwarding for two user accounts to send a copy out to (in this case) 2 x Blackberry addreses. The copy forward emails are generated on the Exchange 2003 no problem (you can see them queuing) but when they are released onto mail.btconnect.com they get EATEN!!... good old BT!

As always BT claim never to have seen this before and arent much help (as always). One chap told me to try and "bring the SPAM count down on these copy forwards..." by configuring SMTP Auth in the (SBS) smarthost using our btconnect.com email address details (Basic Authentication). I tried this but the SMTP Auth was rejected!!

Tested this with Outlook Express running on the SBS and mail was sent ok.

I have read muchos bad stuff about mail.btconnect.com and been advised to change my client to another ISP... am i bashing my head against the BT brick wall or is there a solution to this mess?

Does anyone know if Exchange 2003 'Outbound Security' on the Smarthost needs to be configured differently from setting it up in a mail client like Outlook Express/Outlook?

Thanks
Mark
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Question by:Broadnet_Systems
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Expert Comment

by:Sembee
ID: 20416033
This is probably BT's anti spoofing system.
Automatic forwarding will soon be impossible because it looks like spoofing. The email appears to be coming from another address - not yours and that is why it is being rejected.

Have you tried setting up another SMTP connector for just the Blackberry domains and sending it directly to the Blackberry mail servers?

Simon.
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Author Comment

by:Broadnet_Systems
ID: 20416152
Hello Simon

Thanks for the post.. Looking for alternative solutions, yes, so thanks for the suggestion.
How would i set this up... never come across this before.

Many thanks
Mark
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LVL 104

Expert Comment

by:Sembee
ID: 20416174
It means breaking one of the rules with SBS and doing it manually.

http://www.amset.info/exchange/smtp-connector.asp

Simon.
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Author Comment

by:Broadnet_Systems
ID: 20426667
Hi Simon

Thank you for the instructions. When i config the new SMTP connector should i use mail.btconnect smarthost?

Please forgive my ignorance.

Mark
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LVL 104

Expert Comment

by:Sembee
ID: 20426728
No - the point of creating a new connector is to send to Blackberry directly.
Therefore you will need to send to the Blackberry mail server. You can find out what that is by doing an MX record lookup on the domain.

Simon.
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Author Comment

by:Broadnet_Systems
ID: 20426931

Thanks and how do i get the 'Blackberry' connector to process mail before the 'BtConnect' connector?

Mark
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LVL 104

Accepted Solution

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Sembee earned 2000 total points
ID: 20427017
You have to change the cost in the SBS Connector so that * is cost of 2.

Simon.
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Author Comment

by:Broadnet_Systems
ID: 20427508
Thanks Simon
I will implement tonight and let you know

Thanks
Mark
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Author Closing Comment

by:Broadnet_Systems
ID: 31412991
Thanks Simon
That sorted the problem..."You am da man!"
Many thanks
All the best
Mark
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