5 Server workarounds

Some SMTP servers have special requirements. The following variables implement support for common requirements.

smtpmail-local-domain

The variable smtpmail-local-domain controls the hostname sent in the first EHLO or HELO command sent to the server. It should only be set if the system-name function returns a name that isn't accepted by the server. Do not set this variable unless your server complains.

smtpmail-sendto-domain

The variable smtpmail-sendto-domain makes the SMTP library add ‘@’ and the specified value to recipients specified in the message when they are sent using the RCPT TO command. Some configurations of sendmail requires this behavior. Don't bother to set this unless you have get an error like:

                  Sending failed; SMTP protocol error

when sending mail, and the debug buffer (see Debugging)) contains an error such as:

                  RCPT TO: someone
                  501 someone: recipient address must contain a domain