incoming smtp from v6 addresses

Randy Bush randy at
Wed Jan 4 10:10:06 UTC 2012

for incoming mail that is *accepted*, i.e. not stuff like
    2012-01-04 00:37:28 REJECT because listed in
    2012-01-04 00:37:28 H=( [] F=<pedrom at> rejected RCPT <owner-radiusext at>: blocked because is in  blacklist at Mail from blocked using Trend Micro Email Reputation database. Please see <>
    2012-01-04 00:37:28 no host name found for IP address
    2012-01-04 00:37:29 REJECT too many bad recip
    2012-01-04 00:37:29 REJECT because listed in

7.8% is over ipv6 transport

but only 2% of outgoing deliveries are over ipv6.

what do other folk see?


More information about the NANOG mailing list