UUCP and MAIL FROM:

[listman@cpr.cor.neva.ru (Alexey Lobanov)]

Hello.

I use Zmailer as MTA at a Linux host with some UUCP "downlinks".
The minor problem is that any mail being sent from UUCP is owned by 
respective "UUCP login" pseudo-user. I.e., if 
somebody@subdomain.cor.neva.ru sends UUCP message to world, and his 
UUCP logs in as uusubdomainfakeuser, Zmailer says

MAIL FROM:<uusubdomainfakeuser@atrium.cor.neva.ru>

instead of

MAIL FROM:<somebody@subdomain.cor.neva.ru>

Respectively, any errors are returned to this MAIL FROM. Of course, 
it is aliased to <postmaster@subdomain.cor.neva.ru> now.

The nature of problem is clear: rmail looks on his UID when giving
message to Zmailer. But what is the solution? UUCP is Taylor's.

Regards,
Alexey