The error is lacking information. It appears that
sendmail can not find the address name probably
due to DNS,
Have you tried testing your mail server response
to see that the port is open and accepting connections?
I can send mail using exmh
You could copy the mail configurations in the working
installation to the new one.
I had done that already.
The sendmail package does not include the configuration
file sendmail.cf. Which is why I asked if you installed it.
sendmail does include a sendmail.cf file which is installed in /etc/mail
I have never touched it.
In order to do more testing, please explain what packages
you installed (sendmail. mailx) for trying to use sendmail.
No hata there are no other error messages.
I removed now sendmail-8.14.5-i586-1vl70 and installed sendmail-8.14.4-i486-1 from my working box where I can send mail.
Mail is still stuck in VL7.
I will mention that in my working box /etc/HOSTNAME has to be
"user.smartbro.net". Without the "user." mail will not work. Now in
VL7 if /etc/HOSTNAME is user.smartbro.net mail will be send firstname.lastname@example.org
which address naturally does not exist. So I remove the "user" in HOSTNAME and the address then is correct yet
mail is stuck.