Thank you for the response. I've tried pointing to the Yahoo SMTP server through the WA_Globals parm, but that's not specific enough in this case. My understanding is that the Yahoo email account I am trying to send mail to via my online form is tied to a specific, static IP address so that email sent to the Hostmonster domain can find its way to the Yahoo mail servers. What happened was that we transferred the domain from Yahoo hosting to Hostmonster. There was a little misunderstanding between my client and myself as to the importance (to him) of staying with Yahoo mail. His PDAs and all his workstations were configured to receive mail from Yahoo mail servers. I tried to talk him into a POP3 solution, to no avail. So, a Hostmonster tech worked with a Yahoo tech via a conference call and now we have the nameservers on the Hostmonster domain set to point to the Yahoo nameservers. The Yahoo tech tied the email addy to the static IP so that the mail would specifically rout to this guy's old mail account. So, I believe I need to somehow point to that IP in my form mail processing. Right now, the form tests out perfectly if I change the 'mail to' parameter to any other email addy. But when I use the specific address referred to in this long-winded explanation, it goes into la-la land. We checked to see if the Yahoo spam filtering was dumping the emails, but that was a negative. I should point out that only the form mail is not working. If I send an email to the address in question from MS Outlook, it works. I'm at a loss.