nanog mailing list archives

Re: incoming smtp from v6 addresses


From: Bernhard Schmidt <berni () birkenwald de>
Date: Fri, 6 Jan 2012 19:16:50 +0000 (UTC)

Randy Bush <randy () psg com> wrote:
for incoming mail that is *accepted*, i.e. not stuff like
    2012-01-04 00:37:28 REJECT because 118.39.80.118 listed in rbl-plus.mail-abuse.org
    2012-01-04 00:37:28 H=(nexo.es) [118.39.80.118] F=<pedrom () nexo es> rejected RCPT <owner-radiusext () ops ietf 
org>: blocked because 118.39.80.118 is in  blacklist at rbl-plus.mail-abuse.org: Mail from 118.39.80.118 blocked 
using Trend Micro Email Reputation database. Please see <http://www.mail-abuse.com/cgi-bin/lookup?118.39.80.118>
    2012-01-04 00:37:28 no host name found for IP address 118.39.80.118
    2012-01-04 00:37:29 REJECT 118.39.80.118 too many bad recip
    2012-01-04 00:37:29 REJECT because 118.39.80.118 listed in rbl-plus.mail-abuse.org

7.8% is over ipv6 transport

but only 2% of outgoing deliveries are over ipv6.

what do other folk see?

Main inbound MX for a large educational institution sees around 5% of
mails coming in via IPv6. Might be a bit biased due to holiday season.

Outbound is mostly running on legacy servers without IPv6, yet :-(

Bernhard



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