Good call, using --debug I can now see the reason for rejection (Thecus should log errors if they occur when sending).
The hosting provider is responding with '220-We do not authorize the use of this system to transport unsolicited and/or bulk e-mail.'
Any thoughts on why they might be rejecting?
I have setup an e-mail account, I'm using the mail account name/password, I have tried setting the domain and mail domain to the mail account domain. I have experimented with and without <> around the from field. No luck.
BTW - Thanks for all the effort here it has been a life saver.
I noticed my folders were missing, then I tried a factory reset and it wouldn't even reboot (kept stopped at 59secs). Finally after a power cycle, I can log in only through the wizard and with a black password but it wont take new password, it took a new IP address but doesn't take DNS changes or let me log into it through the network.
Telnet on port 25 returns the same thing. However I am positive it is the correct domain name, and ping is resolving it to the correct IP address. Email via outlook POP/SMTP works fine through the address to the account I setup.
I've sent hostgator's tech support an email, maybe they are doing something clever to prevent relaying e-mails.
getform.html is a different thing and not related to e-mail notification.... Huh??? Oh, now I see, a question from a different poster.
Hostgator's response was that the NAS needed to be configured for athentication.
So I cycled through the various auth types and found auth=login was finally accepted. (I had tried the others 'on', 'plain', 'cram-md5' before, but not 'login')
However, now I get: '550 Adminstrative prohibition' which, best I can tell with Google wisdom, mean the IP is likely on a blacklist. Which seems unlikely since I can send and receive emails fine to my PC which shares the same router/nat.
I have dropped another query to hostgator to see what they say...