I'm a n00b, I'll admit, but I'm having trouble with my sendmail now, and it was working fine a couple weeks ago.
I really don't know what to make of this error so I was wondering if you could translate it for me and help me out if possible, thanks :)


< 250 www.kaytwo.com Hello [64.21.143.22], pleased to meet you
> MAIL FROM:<k2rbka@attbi.com>
< 250 2.1.0 <k2rbka@attbi.com>... Sender ok
> RCPT TO:<k2rbka@kaytwo.com>
< 450 4.7.1 <k2rbka@kaytwo.com>... Relaying temporarily denied. Cannot resolve PTR record for 64.21.143.22

Ok, I sorta fixed it but now I have another problem...

when I attempt to send to @kaytwo.com, it 'relays' the message, and only delivers to the user on the system when i use @www.kaytwo.com

So many confuse?!

Haha, nevermind, I'm probably the biggest idiot alive.
Thanks tho.

Which version of Sendmail do you have? They keep changing the way addresses without PTR entries are handled and its often confusing whether its turned off or on. Also, try the sendmail website. Like most opensource projects they have very in-depth support.

EDIT

Oh, ok. Nevermind.