XCON: Do Not Reroute Incoming SMTP Mail Option Still Allows Relay as a Non-Delivery Report (255695)
The information in this article applies to:
- Microsoft Exchange Server 5.5 SP1
- Microsoft Exchange Server 5.5 SP2
- Microsoft Exchange Server 5.5 SP3
This article was previously published under Q255695 SUMMARY
In Exchange Server 5.5 Service Pack 1 and later, routing restrictions are added to the Internet Mail Service to provide extra security. The Routing tab of the Internet Mail Service contains the two following options to route mail:
- Reroute incoming SMTP mail (Required for POP3/IMAP4 Support)
- Do not reroute incoming SMTP mail
If you select the Do not reroute incoming SMTP mail option, you disable the ability to reroute mail for Post Office Protocol version 3 (POP3) and Internet Message Access Protocol Version 4rev1 (IMAP4) support, but you do not stop intruders who litter large numbers of e-mail boxes with unwanted messages (spam e-mail) or cause heavy processing time on your server.
Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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Keywords: | kbinfo KB255695 |
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