At 3:33 PM -0400 4/10/01, CueMan is rumored to have typed:
I would like to know if a header addition feature is standard equipment with the poplular mailers out there these days?
No they don't, but you don't really need it. Modern versions of SmartList have the blank-line-removal recipie standard for moderated lists, so you could add the approval header as the FIRST LINE of a non-MIME email message and SmartList will cheerfully graft it to the header.
In the SL FAQ, there is mention of a nice looking moderation package that uses the 'Subject: ' field which pretty much bypasses the issue of what mailer one is using. I'm not sure how it verifies one is acually a moderator and not an imposter.
I don't know, since I've never seen it (nor heard of it, frankly), but I can tell you it's trivial to write a couple of recipies in rc.local.s00 to allow you to do pretty much anything you want. A lot of years ago I wrote a password routine that doesn't require an email address, but _does_ require a password in a specific format in the Subject: field which then gets hard-coded in the rc.local.s00, and have been using it ever since - if the password gets into the wild, a simple pico to the rc.local.s00 and it's changed. I probably would do things _really_ differently if I were starting out today, since SmartList already allows for a maintainer's password (it didn't when I first wrote these recipies), but the key is that you can do it whatever way works best for _you_ with very little effort...and if you do things differently enough, you can even make it impossible for someone who knows SmartList to get past you. Charlie