From: alison@c255.ucsf.EDU (ABoeckmann)
Subject: Change in mail software

Date: 10 Jun 1998 12:37:57 -0400

To NONMEM Users Network:

Another try has been made at installng new software to process mail to the NONMEM Users Network ( This message is a test of that software.

You do not have to do anything different.

Continue to send e-mail to the list to the same address,

Continue to send e-mail requesting addition or deletion or change of an e-mail address to

I think that an error was made sometime after May 27, and email may have been returned with a message such as the following: Returned mail: <nmusers@c255.ucsf.EDU>... aliasing/forwarding loop broken

If you sent any email to nmusers recently and are not sure if it was forwarded to the list, try sending it again.


Here are some details for people who are interested in these things. Ignore the following if you are not interested in technical details.

Sendmail 8.9 is now being used in place of the older version of sendmail that is included with SunOS 4.1.4 (Solaris 1).

Sendmail 8.9 should hopefully take care of the most serious problem:

Undeliverable mail should not be sent back to the originator of the mail, but only to the administrator of the list. (With over 340 e-mail address in the list, there are transient or permanent problems with a few of them at any given time.)

Sendmail 8.9 also includes anti-spamming provisions. This will only be used if a serious problem with unwanted advertising arises, because it requires an additional major change here.

You may notice some differences with sendmail 8.9.

The mail may appear to come from rather than from nmusers. Sendmail 8.9 does this so that undeliverable mail will go to the administrator of the list, not to the original sender or to the entire list. Even so, its possible that some undeliverable mail may get returned to the original sender. Some mail programs out there may look "deeper" in the message than the apparent sender (nmadmin) and may send a message back to the original sender. I don't think there is anything that can be done about that.

If you try to reply to the sender using an automatic reply feature of your local mail software, watch carefully to be sure it is going to that address rather than to nmadmin. You can copy or send your email to as before, if you choose.

-- Alison Boeckmann (

NONMEM Project Group