Matthias Andree <ma(_at_)dt(_dot_)e-technik(_dot_)uni-dortmund(_dot_)de>:
Other possibility is to not do any antispam checks on RCPT TO:
command. I think the current antispam spam option is only meant for
response to the MAIL FROM: and DATA commands.
That won't work, because some MTAs will always and some will depending
on configuration defer ANY 4XX or 5XX reply until after RCPT TO.
That's right. I was aware of this when I wrote the code.
The sane approach is to empty the default antispam list. Before 6.0.0 is
a good time, because people expect major changes on a 5.X -> 6.0 upgrade.
I will probably make this change. I'm still meditating on this.
--
<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>