Agreed. It drives me nuts, as I do sender address verification using null senders. It's okay to reject null senders for multiple recipients, but not for just one! I'm also amazed at the number of sites that just ignore e-mails I send informing them of their RFC violation.
Steven --- Steven Dickenson <[EMAIL PROTECTED]> Network Administrator The Key School, Annapolis Maryland -----Original Message----- From: Randal, Phil [mailto:[EMAIL PROTECTED] Sent: Thursday, May 29, 2003 11:10 AM To: Exchange Discussions Subject: RE: Open Relay Help On the subject of emails from "<>", RFC2821 says your mailer must accept them. It neededn't do anything with them, though. There's a surprisingly large number of misconfigured mailers which bounce them, alas. Phil --------------------------------------------- Phil Randal Network Engineer Herefordshire Council Hereford, UK > -----Original Message----- > From: Paul Hutchings [mailto:[EMAIL PROTECTED] > Sent: 29 May 2003 15:58 > To: Exchange Discussions > Subject: RE: Open Relay Help > > > If it's originator is <> they're NDRs and the likes - they > can be safely > deleted. > > You might want to keep an eye on http://www.openrbl.org to > make sure you > don't creep onto more DNSBLs as people receive stuff that may > have been sent > through your server and report it to Spamcop and the likes. > > Some lists you'll be able to get removed from, some you're > stuck on simply > for being with QWest. > > regards, > Paul > -- > Paul Hutchings > Network Administrator, MIRA Ltd. > Tel: 024 7635 5378, Fax: 024 7635 8378 > mailto:[EMAIL PROTECTED] > > > -----Original Message----- > > From: Taylor, Skip [mailto:[EMAIL PROTECTED] > > Sent: 29 May 2003 15:52 > > To: Exchange Discussions > > Subject: RE: Open Relay Help > > > > > > I saw about 50 or so. I'm still getting items in the queue > > with a blank > > originator. Is this to be expected? What happens to these items? > > > > Skip Taylor, MCSE > > Network Administrator > > Jordan, Jones, and Goulding > > > > > > -----Original Message----- > > From: Paul Hutchings [mailto:[EMAIL PROTECTED] > > Sent: Thursday, May 29, 2003 10:46 AM > > To: Exchange Discussion > > Subject: RE: Open Relay Help > > > > > > Nope, rejects relay attempts using sam spade. > > > > If you've not already done so check your outbound queue - you > > don't want to > > find there's 10,000 spams in there :-) > > > > regards, > > Paul > > -- > > Paul Hutchings > > Network Administrator, MIRA Ltd. > > Tel: 024 7635 5378, Fax: 024 7635 8378 > > mailto:[EMAIL PROTECTED] > > > > > -----Original Message----- > > > From: Taylor, Skip [mailto:[EMAIL PROTECTED] > > > Sent: 29 May 2003 15:44 > > > To: Exchange Discussions > > > Subject: RE: Open Relay Help > > > > > > > > > I unchecked "Hosts and clients connecting to these internal > > > addresses" and > > > restarted the IMS. Still relaying? > > > > > > Skip Taylor, MCSE > > > Network Administrator > > > Jordan, Jones, and Goulding > > > > > > > > > -----Original Message----- > > > From: Paul Hutchings [mailto:[EMAIL PROTECTED] > > > Sent: Thursday, May 29, 2003 10:42 AM > > > To: Exchange Discussion > > > Subject: RE: Open Relay Help > > > > > > > > > I think the "Hosts and clients connecting to these internal > > > addresses" is > > > your problem - you don't need it ticked (or I should say it > > > isn't ticked > > > here and doesn't affect inbound email). > > > > > > regards, > > > Paul > > > -- > > > Paul Hutchings > > > Network Administrator, MIRA Ltd. > > > Tel: 024 7635 5378, Fax: 024 7635 8378 > > > mailto:[EMAIL PROTECTED] > > > > > > > -----Original Message----- > > > > From: Taylor, Skip [mailto:[EMAIL PROTECTED] > > > > Sent: 29 May 2003 15:35 > > > > To: Exchange Discussions > > > > Subject: RE: Open Relay Help > > > > > > > > > > > > On the Routing tab "Reroute incoming SMTP mail (required for > > > > POP3/IMAP4 > > > > support)is checked. > > > > In the field below Sent to: has our domain of jjg.com and > > > Route to: is > > > > <inbound> > > > > > > > > The Routing Restrictions are as follows: > > > > Hosts and clients that successfully authenticate is not checked. > > > > Host and clients with these IP addresses is checked and > > > > populated with 3 > > > > internal addresses for Canon Image Runner copiers that can > > > send email. > > > > Hosts and clients connecting to these internal addresses is > > > > checked with the > > > > Internal IP address of our exchange server. > > > > Specify the hosts and clients that can NEVER route mail > is empty. > > > > > > > > Skip Taylor, MCSE > > > > Network Administrator > > > > Jordan, Jones, and Goulding > > > > > > > > > > > > -----Original Message----- > > > > From: Chris Scharff [mailto:[EMAIL PROTECTED] > > > > Sent: Thursday, May 29, 2003 10:29 AM > > > > To: Exchange Discussion > > > > Subject: RE: Open Relay Help > > > > > > > > > > > > Still open... What's that tab say now exactly? > > > > > > > > -----Original Message----- > > > > From: Taylor, Skip [mailto:[EMAIL PROTECTED] > > > > Posted At: Thursday, May 29, 2003 9:23 AM > > > > Posted To: swynk > > > > Conversation: Open Relay Help > > > > Subject: RE: Open Relay Help > > > > > > > > > > > > I'm sure I did but restarted once more to make sure. Can you > > > > try again? > > > > > > > > Skip Taylor, MCSE > > > > Network Administrator > > > > Jordan, Jones, and Goulding > > > > > > > > > > > > -----Original Message----- > > > > From: Chris Scharff [mailto:[EMAIL PROTECTED] > > > > Sent: Thursday, May 29, 2003 10:13 AM > > > > To: Exchange Discussion > > > > Subject: RE: Open Relay Help > > > > > > > > > > > > You're still an open relay. Did you restart the IMS after > > making the > > > > changes described in the article? > > > > > > > > Describe your settings on this tab as well in detail: > > > > http://www.exchangeadmin.com/Files/04/7696/Screen_04.gif > > > > > > > > -----Original Message----- > > > > From: Taylor, Skip [mailto:[EMAIL PROTECTED] > > > > Posted At: Thursday, May 29, 2003 9:06 AM > > > > Posted To: swynk > > > > Conversation: Open Relay Help > > > > Subject: Open Relay Help > > > > > > > > > > > > Apparently my mail server has been listed as an Open Relay at > > > > http://njabl.org/. > > > > > > > > I've followed the instructions listed in the following FAQ, > > > and still > > > > get listed as an open relay. > > > > > > > > 3.73 Q: How can I configure my Exchange server so it can't be > > > > used as an > > > > open relay? > > > > A: > http://www.exchangeadmin.com/Articles/Index.cfm?ArticleID=7696 > > > > > > > > > > > > My server is as follows: > > > > Windows 2000 SP2 > > > > Exchange 5.5 SP4 > > > > Trend Micro's ScanMail and EManager are installed and current > > > > on version > > > > and pattern files. > > > > > > > > I have been unsuccessful in finding and searching the > > archives. Any > > > > help would be greatly appreciated. > > > > > > > > > > > > > > > > Skip Taylor, MCSE > > > > Network Administrator > > > > Jordan, Jones, and Goulding > > > > > > > > > _________________________________________________________________ > > > > List posting FAQ: > http://www.swinc.com/resource/exch_faq.htm > > > > Web Interface: > > > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > > > ext_mode=& > > > lang=english > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Web Interface: > > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > > > ext_mode=& > > > lang > > > =english > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Web Interface: > > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > > ext_mode=& > > lang=english > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Web Interface: > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > > ext_mode=&lang > > =english > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Web Interface: > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > ext_mode=&lang > =english > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
