Maybe *THIS* will help.

[hobbit () avian org (*Hobbit*)]

I'm still not completely happy with Sendmail 8.6.10.

In fact I wasn't happy with 8.6.9, and was right in the middle of working up
a "fix kit" for it to firm up various holey-looking bits, when this whole
8.6.9 identd/environment/argument thing came down.

Fortunately the fix-kit was fairly easy to adapt to 8.6.10, and is now
available for public consumption in avian.org:/src/fixkits/sm8610.fix.

I am willing to bet that even if Sendmail 8.6.11 comes out within days, it
will not address the potential problems I've been busy digging up.

Of note is the fact that the new string-sanity functions in the stock 8.6.10
check for newlines, but NOT RETURNS.  The fix-kit addresses this.

There are fix-kits for other popular packages here too.  Pull down
/src/fixkits/README for an overview.  Be patient in your downloads;
avian.org is on the wrong end of a semi-slow link.

_H*