SBS 2011/Exchange 2010 Opening up Relay to Exchange Server

Posted on 2013-09-14
Medium Priority
Last Modified: 2013-10-25
Hi, I recently installed a new SBS 2011 Server migrated from an SBS 2003 etc.
Everything is fine apart from their Line of Business Database program isn't sending out their emails but email sends out fine as normal for Outlook etc.

I don't have much information on the database apart from the fact it points to the internal IP Address of the SBS server and uses port 25 and runs on their workstations with the data actually running live across their network but is actually held on the SBS Server.

I've advised the customer bulk email sending isn't really recommended via Exchange server these days because of spamming / potential blacklisting etc as I believe the database uses their internal Exchange Server to send out several thousand emails but it always worked before on their old SBS 2003.

I've tried setting up a new “New Receive Connector” within Exchange Console under Server Configuration and Hub Transport.
Gone to "Receive mail from from remote servers that have these IP Addresses.
and put in their internal DHCP scope range that their client PC's use i.e. 192.168.x.10 - 192.168.x.200
Gone to authentication and ticked "TLS" and "basic authentication"
then permission groups and ticked "anonymous access"

Got them to try from a client PC sending again but all the database says is "socket error"
it's quite an old and outdated bit of software and isn't very configurable in terms of it's SMTP settings.

Would appreciate if anyone has any ideas on this or if there is something I might be missing??

Many Thanks in advance.
Question by:CRL ltd
LVL 63

Accepted Solution

Simon Butler (Sembee) earned 2000 total points
ID: 39492894
SBS by default will block access to the local network for sending email to Exchange.
Does the application need to send to external recipients, or just internal?
If just internal, enable anonymous on the Default Receive Connector and then restart Transport.
If it is need to send to external recipients, then you need a new connector as you have created but it needs some additional settings.

Follow the guide on this blog posting - it is for Exchange 2007 but the commands the same on Exchange 2010: http://semb.ee/apprelay


Author Comment

by:CRL ltd
ID: 39494878
Their application needs to send to external email addresses.
I've tried setting it as per Option 2: Grant the relay permission to Anonymous on your new scoped connector

hopefully this will do it I will get them to test tomorrow.

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