Hello all:

Firstly this is not a failure from GMail but maybe somebody here have had the same problem and could help me.

I have sent mail sfrom many other sites and have recieved them on my mailserver/GMailserver without problem. But when I attempt to send mail from "yahoo.com", I get the following failure message:

"Message from yahoo.com.
Unable to deliver message to the following address(es).

<pyc@mybestonline.com>:
Sorry, I couldn't find any host by that name. (#4.1.2)
I'm not going to try again; this message has been in the queue too
long."

Can anybody give some idea about a solution. I looked at the GMailForum and the internet but got nowhere. On the internet, these failures where mainly associated with qmail. My Gmailserver is using sendmail-8.12.8.

Thanks for your attention, pcurran