Hi Like said before. Kill all other MTA's and make shore they remain stopped at system start. Regarding Zimbra MTA issues, i've always ended up with dns problems as the cause of mta malfunction. Check if the DNS you provided at /etc/resolv.conf is resolving correctly the zimbra server name. Check local /etc/hosts file to see if your server is listed there correctly. At last, check the firewall it may be blocking smtp. Regards, Nassri Esta mensagem pode conter informa??o Confidencial/Privilegiada. Se n?o ? o destinat?rio desta mensagem (ou respons?vel por entregar esta mensagem ao destinat?rio), n?o deve copiar ou entregar esta mensagem a outra pessoa. Nesse caso, deve fazer o favor de destruir esta mensagem e de notificar o emissor por e-mail. Por favor, avise imediatamente se o destinat?rio ou a sua empresa n?o consentirem este tipo de mensagens Internet. Opini?es, conclus?es ou outro tipo de informa??es contidas nesta mensagem que n?o estejam relacionadas com o neg?cio oficial da empresa do emissor devem ser entendidas como n?o enviadas ou emitidas por essa empresa. Confidential/Privileged Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of my firm shall be understood as neither given nor endorsed by it.