http://www.msexchange.org -------------------------------------------------------Andrew, you are mixing things up again. Doing a PTR lookup on the connecting server on an incoming message is a valid test as part of an anti-spam effort. Doing a PTR lookup on the receiving server on an outgoing message is worthless as part of an anti-spam effort to keep spam from coming in. John T eServices For You "Seek, and ye shall find!" > -----Original Message----- > From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] > On Behalf Of Andrew English > Sent: Tuesday, May 16, 2006 6:46 PM > To: exchangelist@xxxxxxxxxxxxx > Subject: [ExchangeList] Re: Reverse Lookup > > http://www.msexchange.org > -------------------------------------------------------I don't know what with your emails > John but they all start after the > ---- line as suppose to under it. Anyhow regarding ethics tell that to > the hordes of companies that only accept and send email if they can > reverse look up your IP. > > Andrew :) > > -----Original Message----- > From: exchangelist-bounce@xxxxxxxxxxxxx > [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John T (Lists) > Sent: Tuesday, May 16, 2006 7:16 PM > To: exchangelist@xxxxxxxxxxxxx > Subject: [ExchangeList] Re: Reverse Lookup > > http://www.msexchange.org > -------------------------------------------------------So if the > recipient e-mail server does not have a valid PRT record, you do > not want to deliver the message but delete it? Other than the fact there > is > no valid reason for do that, it would break ethics if not laws. > > John T > eServices For You > > "Seek, and ye shall find!" > > > -----Original Message----- > > From: exchangelist-bounce@xxxxxxxxxxxxx > [mailto:exchangelist-bounce@xxxxxxxxxxxxx] > > On Behalf Of Andrew English > > Sent: Tuesday, May 16, 2006 3:52 PM > > To: exchangelist@xxxxxxxxxxxxx > > Subject: [ExchangeList] Re: Reverse Lookup > > > > http://www.msexchange.org > > ------------------------------------------------------- > > How do I get Exchange to do a reverse lookup of the IP address it's > > sending an email to before sending it to check if it's valid or not, > and > > if it's not valid to drop the email all together? > > > > Thanks > > Andrew > > > > ------------------------------------------------------- > > List Archives: //www.freelists.org/archives/exchangelist/ > > MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp > > MSExchange Articles and Tutorials: > http://www.msexchange.org/articles_tutorials/ > > MSExchange Blogs: http://blogs.msexchange.org/ > > ------------------------------------------------------- > > Visit TechGenix.com for more information about our other sites: > > http://www.techgenix.com > > ------------------------------------------------------- > > To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp > > Report abuse to listadmin@xxxxxxxxxxxxxx > > > ------------------------------------------------------- > List Archives: //www.freelists.org/archives/exchangelist/ > MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp > MSExchange Articles and Tutorials: > http://www.msexchange.org/articles_tutorials/ > MSExchange Blogs: http://blogs.msexchange.org/ > ------------------------------------------------------- > Visit TechGenix.com for more information about our other sites: > http://www.techgenix.com > ------------------------------------------------------- > To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp > Report abuse to listadmin@xxxxxxxxxxxxxx > > ------------------------------------------------------- > List Archives: //www.freelists.org/archives/exchangelist/ > MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp > MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ > MSExchange Blogs: http://blogs.msexchange.org/ > ------------------------------------------------------- > Visit TechGenix.com for more information about our other sites: > http://www.techgenix.com > ------------------------------------------------------- > To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp > Report abuse to listadmin@xxxxxxxxxxxxxx ------------------------------------------------------- List Archives: //www.freelists.org/archives/exchangelist/ MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ MSExchange Blogs: http://blogs.msexchange.org/ ------------------------------------------------------- Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------- To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp Report abuse to listadmin@xxxxxxxxxxxxxx