Brian, The idea behind the "relay-secure" article is to protect your system from being used as a bounce. By default Exchange 5.5 is open to be exploited as a mail bouncer by anyone. When I first learned about this I became curious to see how many of the people on this list and others I knew were open and surprisingly I found many. Did that answer your questions?
John -----Original Message----- From: Murphy, Brian [mailto:[EMAIL PROTECTED]] Sent: Monday, November 19, 2001 2:58 PM To: Exchange Discussions Subject: RE: Dumb Question about Relaying I just want to receive mail for my domain only. The only way I have found to perform this is to enable routing and "Reroute incoming SMTP mail (required for POP3/IMAP4 support) for "mydomain" and then set routing restrictions for "Hosts and clients" to "null". Maybe it's just me but this still doesn't seem quiet right if all I want to do is send mail out and receive mail for "mydomain" only. -----Original Message----- From: Benjamin Scott [mailto:[EMAIL PROTECTED]] Sent: Monday, November 19, 2001 4:47 PM To: Exchange Discussions Subject: Re: Dumb Question about Relaying On Mon, 19 Nov 2001, Murphy, Brian wrote: > I have heard everyone talk about not "relaying" mail or not allowing the > "relaying" of mail. But what exactly does that mean? An SMTP system that performs relaying will accept mail for domains other than those handled by the local system, and pass it on (relay it) to the final destination. For example, if you permitted relaying, your system would accept mail addressed to <[EMAIL PROTECTED]>, and then contact Microsoft's mail exchangers and attempt to deliver it to Mr. Gates. > For example, I have my system setup to NOT relay mail as per the FAQ. > However, it states to enable routing (Reroute incoming SMTP) and then > enable routing restrictions. Basically, this means the system will accept SMTP mail, but only for those domains to which you have created routing entries. > Let's assume I don't need POP3 or IMAP4. POP3 and IMAP4 are used only to retrieve mail from a mail server; they actually have nothing to do with SMTP (which is used to exchange (lower-case 'E') mail between servers). -- Ben Scott <[EMAIL PROTECTED]> | The opinions expressed in this message are those of the author and do not | | necessarily represent the views or policy of any other person, entity or | | organization. All information is provided without warranty of any kind. | _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
