That would be extremely dangerous, spam from anywhere would be relayed just by forging sender's address. The best solution for roamers' smtp is SMTP-after-POP, trust me, what i have done is to modify the source i found on the net (Bruce Guenter's) and i have customized it so my smtp server is not abused by non-roaming users of mine, and now it works simply fine. Enrique- |o| ---- Charrua escribió ---- |o| Hi all, |o| Is there another procedure to enable Selective SMTP relaying which is not |o| SMTP-after-POP?. The great problem posed by this solution is that the users |o| do not want to perform the manual checking of the mailbox first and send |o| after. |o| Isn't there a method to enable it by domain? That is to say if the message |o| comes from domain "domain1.com","domain2.com" or "domain3.com" I allow it to |o| relay. If it comes from another domain I do not. |o| Thanks and Best Regards |o| Andrés