I’m always surprised at the subject lines people come up with when asked to send a blank email to an autoresponder. Why not save them the trouble? This HTML script will automatically complete the subject line for the respondent as soon as they click on it:
The email address at the beginning of the string is the autoresponder’s address. The string that begins “subject=” is the subject line that the message will automatically address itself with.
You can also use this technique to determine where email inquiries originate by putting identifying codes in the subject line.