whitelisting

I changed the timers lately, seeing that infected pcs are no defeating the
limit I'd previously set.  Since the infected devices are now retrying, I guess
changing timers may be futile, since their retry times will just get longer an
longer and could end up indestinguishable from any valid sender.

To force negotiation of a longer time, I purged the database of valid relays.

Unfortunately, a side-effect appears to be that we can't get mail from gmail
now that the database was cleared.

It looks like google retries from inconsistent ips.  Does anyone have a
whitelist for gmail?

This is a student's attempt to send to himself here.  The occasional accidental
IP matches succeeded; the others failed.

Jun  1 10:23:43 72.14.204.239 [email protected] [email protected]
Jun  1 10:25:49 64.233.162.205 [email protected] [email protected]
Jun  1 10:30:20 72.14.204.234 [email protected] [email protected]
Jun  1 10:31:59 64.233.162.197 [email protected] [email protected]
Jun  1 10:44:10 64.233.162.206 [email protected] [email protected]
Jun  1 10:50:32 64.233.162.200 [email protected] [email protected]
Jun  1 10:52:40 72.14.204.224 [email protected] [email protected]
Jun  1 11:08:47 64.233.162.197 [email protected] [email protected] sending
Jun  1 11:16:57 64.233.162.194 [email protected] [email protected]
Jun  1 11:26:24 72.14.204.229 [email protected] [email protected]
Jun  1 11:28:09 64.233.162.202 [email protected] [email protected]
Jun  1 12:18:37 64.233.162.198 [email protected] [email protected]
Jun  1 12:20:42 64.233.162.195 [email protected] [email protected]
Jun  1 13:21:09 64.233.162.202 [email protected] [email protected] sending
Jun  1 13:37:59 64.233.162.204 [email protected] [email protected]
Jun  1 13:51:48 72.14.204.232 [email protected] [email protected]
Jun  1 14:44:46 64.233.162.199 [email protected] [email protected]
Jun  1 15:02:20 72.14.204.234 [email protected] [email protected] sending
Jun  1 15:46:29 64.233.162.203 [email protected] [email protected]