Milter-greylist

Hello Group,

Apologies if the following questions have already been answered but my
searches of the archive were unsuccessful.

I am running milter-greylist 1.6 in a test mode (-T) with sendmail
8.13.0 where sendmail.mc includes:

define(`confMILTER_MACROS_CONNECT', `j, {if_addr}')
define(`confMILTER_MACROS_ENVFROM', `i, {auth_authen}')
INPUT_MAIL_FILTER(`greylist',`S=local:/var/milter-greylist/milter-greylist.sock')

Question 1. Username match
--------------------------

/etc/mail/greylist.conf includes:

rcpt anna@...
rcpt asia@...

greylisting seems to apply not only to the addresses:

anna@...
asia@...

but also to addresses where the username contains anna or asia, eg:

hanna@...
kasia@...

The latter are not listed in /etc/mail/greylist.conf.

Is it a bug in milter-greylist or something I've misunderstood?

Question 2. Broken MTAs
-----------------------

The default greylist.conf included in the tarball contains a list of
broken MTAs, some Yahoo groups servers included but not all. My
attempt at joining this list resulted in greylisting of 66.94.237.28
from which a reply to my joining message came and was tempfailed. No
attempt to repeat its delivery was ever made.

Then, I noticed other Yahoo groups servers from 66.94.237.* network
sending messages to addresses in our domain, tampfailed as well.

That has prompted me to append the following line to greylist.conf:

addr 66.94.237.0/24

Are there any other broken MTAs this group knows of?
Is there any place where a current list of broken MTAs is maintained?

Question 3. timeout
-------------------
 
The following item in greylist.conf is not quite clear to me:

# How long will the greylist database retain tuples
#timeout=5d

Does it concern any tuple, or greylisted, or whitelisted? If:

autowhite=5d
timeout=3d

does a whitedlisted tuple remain in the data base for 5 days?


Thanks,
--
Jack