I've got a new installation of 5.0 on a new Ubuntu 10.04 box.
I've installed sendmail and as root I can send mail to systems outside my LAN.
The system name is plus2.airchek.com and I've set up a virtual host
wiki.airchek.com. I can't get Tikiwiki to send email.
I've set the Sender email to be www-data at airchek.com.
When I try to send test mail my maillog says:
"Authentication-Warning: plus2.airchek.com: www-data set sender to www-data at airchek.com using -f"
This is followed by another entry that has the same message ID# but ends with "relay=www-data@localhost"
I think this is probably more of a sendmail configuration issue but its frustrating since I can't log in to create an account for myself or any users.