The two lines that are being added to the top of time-nuts messages are coming from some sort of interaction between four separate parts of the mail handling system here; I did a system software update yesterday and something broke. One of the two lines seems to be part of what is normally logged during message processing, while the other (the "Errors-to" line) is a header that would normally be in the message, but not displayed in the body. I've done a google search and haven't come up with any reference to this problem, and frankly because of the number of programs involved (at least Exim4, Mailman, and SA-Exim) tracking down just what's going on is likely to be beyond my abilities, or at least the time I can spend on figuring it out. As far as I can tell, the email address in the "Errors-to" line is the address of the specific recipient of the message, and not someone else's (in other words, your copy of the message will include your address, while mine will include my address). So, there isn't a privacy issue. However, if you reply to a previous message, that header will by default be in the quoted original text and will expose your email address. So, it would be best to look for and if necessary delete those two lines from any reply where you quote an earlier message. I'll keep an eye on the available updates and hopefully there will be a fix for this problem Real Soon Now. (I'm running Debian unstable on the mail server, and updates occur very frequently.) Sorry again for any inconvenience this is causing. John

From: John Ackermann N8UR <jra@febo.com> Subject: [time-nuts] More on the weird stuff at the top of messages Date: Sat, 30 Jun 2007 08:49:45 -0400 Message-ID: <46865169.4070109@febo.com> > The two lines that are being added to the top of time-nuts messages are > coming from some sort of interaction between four separate parts of the > mail handling system here; I did a system software update yesterday and > something broke. > > One of the two lines seems to be part of what is normally logged during > message processing, while the other (the "Errors-to" line) is a header > that would normally be in the message, but not displayed in the body. Ironically they didn't show up this time. :) > I've done a google search and haven't come up with any reference to this > problem, and frankly because of the number of programs involved (at > least Exim4, Mailman, and SA-Exim) tracking down just what's going on is > likely to be beyond my abilities, or at least the time I can spend on > figuring it out. I use postfix for my mailman. I use greyfix as a first line of defence. Should get my act together and hook in the spamassassin. > As far as I can tell, the email address in the "Errors-to" line is the > address of the specific recipient of the message, and not someone else's > (in other words, your copy of the message will include your address, > while mine will include my address). So, there isn't a privacy issue. It should normally sit in the header and only show up when inspecting it. I think that part is incorrectly inserted as a result of the other message. > However, if you reply to a previous message, that header will by default > be in the quoted original text and will expose your email address. So, > it would be best to look for and if necessary delete those two lines > from any reply where you quote an earlier message. > > I'll keep an eye on the available updates and hopefully there will be a > fix for this problem Real Soon Now. (I'm running Debian unstable on the > mail server, and updates occur very frequently.) I too run Debian unstable, but having chosen the Postfix/Greyfix path for my email lists it works well most of the time. Mailman upgrades is however not as painless as they should be, but they are rare. I also run Postfix and Mailman on a BSD machine and that keeps tickin, even if it is a multidomain setup. Cheers, Magnus