SeaMonkey Help

SeaMonkey Mailnews FAQ

How can I add the "X-No-Archive" header to my messages?

You can add header lines to every message sent out via a certain identity.
This requires at least 2 user.js lines.
user_pref("mail.identity.id#.headers", "whatever");
user_pref("mail.identity.id#.header.whatever", "X-No-Archive: yes");

Put your identity number in place of the "#". You can look in your prefs.js or enter about:config in the SeaMonkey browser to find out the number of the identity you want to add the line to.
"whatever" is simply a description. You can put whatever word you want there, as long is it is the same word you use in the line that actually contains the header you want to add.
For example:
user_pref("mail.identity.id3.headers", "archive,secret");
user_pref("mail.identity.id3.header.archive", "X-No-Archive: yes");
user_pref("mail.identity.id3.header.secret", "X-Secret-Word: Mozilla");

The following will add X-No-Archive to the list of header fields (TO:, CC:, Newsgroup:, etc.) Call it up, and type "yes" (without quotes) in the field.

There are a couple of ways to do it.
1. Add this line to your user.js:
user_pref("mail.compose.other.header", "X-No-Archive");

To add more than one custom header to the list, you must add it to the same user.js line. For example:
user_pref("mail.compose.other.header", "X-No-Archive,X-Secret-Word");

2. (recommended) Download Mnenhy, which will allow you to add such headers via the user interface.