Hello, We have two SMTP in our Exchange Server. One is the "Internal SMTP" and the other is the "External SMTP". "Internal SMTP" --> where the internal clients submit email. Only receives email from inside and only sends email to outside. "External SMTP" --> where external clients/server submit email. Only receives emails from outside and sends email to inside and outside. "Internal SMTP" has different security settings and retry intervals from External SMTP. "External SMTP" has short retry intervals and an discard a message who lives for mores than 30 minutes in the queue (we did this for the spam NDR's). We have one external organization and we must provide relay service for their Exchange server. If their exchange server goes down, our exchange server must maintain their email for 5 days. Then we established a new SMTP Routing connector for the external domain xxxx.yyy . We related this SMTP routing connector with the "External SMTP" . The thing works fine with one exception: "External SMTP" discards every message after 30 minutes in the queue and we need different retry and timeout intervals for the domain xxxx.yyy. How to do it? Thanks and Best regards Duarte S. PS: This is a Standard Exchange 2003
