"May be forged"?

[Mark]

Thanks to Kris I found the new sendmail. :) But a slight anomaly occurs in
8.12.10:

AUTH=server, relay=my-xp-machine.net [192.168.1.3] (may be forged),
authid=admin

That is odd; why would it suddenly say "may be forged"? That makes no sense.
Switched back to 8.12.9, and everything is ok again:

AUTH=server, relay=my-xp-machine.net [192.168.1.3], authid=admin

I compiled it as follows:

make SENDMAIL_WITHOUT_IPV6=yes SENDMAIL_WITH_SMTPS=yes
SENDMAIL_WITH_SASL2=yes

Before, I think I used "SENDMAIL_WITH_TLS=yes", instead of
"SENDMAIL_WITH_SMTPS=yes". Is there someone who can explain this? Or better,
who knows how to fix it? :)

- Mark