Recipient Validation & Design Opinions

Hello, We are putting together an OpenBSD-based border email server to replace an aging Linux box. On the current system, Postfix performs a call ahead to two internal boxes for recipient validation. I'm interested in recommendations on how to perform validation with the base sendmail. The

Domain Resolution Issue

Hello, We are experiencing an issue with resolution of a domain, roadwire.com, on our gateway email server running 4.5-stable. The server is running named with /etc/resolv.conf set to 127.0.0.1. NXDOMAIN is returned when performing an nslookup or dig on roadwire.com. However, if a "rndc flushna