Its only an open relay if reroute incoming mail is enabled. If not, I don't believe its an open relay.
------------------------------------------------------ Roger D. Seielstad - MCSE MCT Senior Systems Administrator Peregrine Systems Atlanta, GA http://www.peregrine.com > -----Original Message----- > From: John Martinez [mailto:[EMAIL PROTECTED]] > Sent: Monday, November 19, 2001 6:51 PM > To: Exchange Discussions > Subject: RE: Dumb Question about Relaying > > > 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] > _________________________________________________________________ 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]
