Hi, I have two mail in diferents os, one is NT Mdaemon, and another is Qmail with vpopmail and sqwebmail. I change the virtualhosts in my primary dns server like this ; dominio virtual manejado por plauto (virtual.com.py) www IN CNAME plauto.itacom.com.py. correo IN CNAME correo.ita.com.py. correo IN A 207.124.229.38 ita.com.py. IN MX 10 correo.ita.com.py. ; correo manejado por pascal pascal IN CNAME pascal.ita.com.py. pascal IN A 207.124.229.47 ita.com.py. IN MX 20 pascal.ita.com.py. the first, correo,ita.com.py work with Nt, and the sencod Work with my love qmail. The logical say, when ita recive a mail for rcpt pepito and pepito no exist in correo.ita, the next step is lookin for in pascal.ita (of course is pepito exists in pascal.ita.com.py. But, correo.ita resolve and say No exist final point and never ask to pascal. I change the priority to pascal 10 and correo 20, and the same stuff. What can I do for work in this way, ask in correo.ita.com.py , if exist resolve. If no exist ask in pascal.ita.com.py and if exist works. Thanks Alexa