Yes, it is a good idea. The ISP needs to be set up to store and forward the messages (search on ETRN), your server needs to be set up to retrieve the stored messages, either over the internet or via dial-up, and the MX records cost should be set so that the connection is only used if the first two are unavailable.
To find which server is not allowing the relay (I'm guessing it's the ISP) try the following: Open a Telnet seeion to port 25 of each server HELO xyz.com Mail From:[EMAIL PROTECTED] RCPT TO:[EMAIL PROTECTED] DATA test . QUIT Which one barks about relaying. If it is the ISP then remove the record for now, and work with them to set up relaying appropriately. If it is yours -- fix it. -Patrick R. Sweeney http://boston.craigslist.org/bos/res/8484283.html ----- Original Message ----- From: "Jojo Solis" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[EMAIL PROTECTED]> Sent: Thursday, February 20, 2003 12:29 AM Subject: two Internet address? all, is it good idea to have Two deffirent Internet address that point to diffirent ISP for an email server? one address is a backup just incase my link to one ISP goes down.please see sample below: mycompany.com.ph mail exchange=5 myserver.mycompany.com.ph mycompany.com.ph mail exchange=10 myserver.mycompany.com.ph mycompany.com.ph mail exchange=15 mail.myISP.com myserver.mycompany.com.ph=203.167.XXX.XXX myserver.mycompany.com.ph=202.138.XXX.XXX i want to remove one of those Internet address, i believe its the cause why some messages bounced back with error message Relay access denied. Thanks jojo _________________________________________________________________ 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]

