Re: [exim] Problem sending Mail to comcast

Tom Fischer wrote:

> Fixed the 1s TTL-Problem, i think i need vacation. This was only for

Vacation is always good :)

>> What makes you think that?
> Because when i do a telnet connection to comcast mail gateway i have to
> wait for about 4 minutes until it gives the return codes (maybe this is

You mean the initial 220 greeting? That is way too long. Could be some
network/firewall issue (ECN, icmp filtering). Is your rdns-setup ok? Hm,
but even then it shouldn't take 4 minutes.

> related to pipeline, don't know)

No, PIPELINE just means, that the remote servers can handle multiple
(MAIL and RCPT) commands at once instead of one by one. It's there to
make things faster.