I can't see the -D option anywhere in my master.cf file. I think this issue was occurring before trying that anyway. I have also restarted the Postfix service.
host 192.168.0.10 ;; connection timed out; no servers could be reached I expected this to timeout as I don't have internal DNS name resolution for my desktops (never have). Could Postfix be trying to resolve the name of my desktop before sending the email? -- View this message in context: http://postfix.1071664.n5.nabble.com/Slow-sending-of-email-tp65252p65255.html Sent from the Postfix Users mailing list archive at Nabble.com.