Thanks for your tutorial. Looks straightforward enough, but when I get to gmail’s “Send mail through your SMTP server”, and enter the info as you have explained, I get:
Authentication failed. Please check your username/password.
[Server response: DNS Error: 9416363 DNS type ‘aaaa’ lookup of smtp.<myowndomain>.net responded with code NXDOMAIN 9416363 DNS type ‘a’ lookup of smtp.<myowndomain>.net responded with code NXDOMAIN code(0) ]