We are receiving a number of calls from customers who are receiving a 'Relaying Denied' message when trying to send email.
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SMTP stands for Simple Mail Transfer Protocol, and is the basis for sending mail from one location to another on the internet...
How to block open SMTP relaying and clean up Exchange Server SMTP queues in Windows Small Business Server
Manually Configuring Your Exchange Server for Internet Mail Delivery
Our mail platform will automatically support the handling of mail for any domains which TalkTalk Business run on behalf of our customers.
Configuring Microsoft Exchange 5.5 to prevent it relaying unwanted email (spam).
The relaying of Junk/Spam email is caused by disreputable people using other people's mail systems to send their unsolicited advertising, thereby ensuring that the relaying system is blamed for the email rather than the original sender.
To bypass DNS name resolution:
1. Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager...
1.Click Start, point to Programs, point to Microsoft Exchange, and then click System Manager...