Issues with outbound SMTP
I am having some issues getting outbound SMTP working.
My ISP blocks port 25 both ways except for their servers and they also don't allow relaying through their servers.
I use the dyn.com Mailhop and SMTP relaying services to get around these issues.
I have inbound mail working fine but outbound is still causing me issues.
My outbound mail ends up in the "deferred" queue because the messages get the following error: "Oct 5 06:59:59 phantom postfix/smtp: send attr reason = conversation with outbound.mailhop.org[18.104.22.168] timed out while receiving the initial server greeting"
I can telnet to outbound.mailhop.org on 465 and get a connection BUT I don't get any response to my EHLO command.. it just closes the connection.
Any thoughts on how to troubleshoot this further ?