nanog mailing list archives
Re: IPv6 woes - RFC
From: "John Levine" <johnl () iecc com>
Date: 8 Sep 2021 16:07:40 -0400
It appears that Bill Woodcock <woody () pch net> said:
The next thought was SMTPI assume someone’s tried using MX record precedence to do this? AAAA record references with lower values than A record references, and see what happens? Anyone have any results to share there?
I used to publish two MX records at the same precedence, one with an A record and one with an AAAA record. It didn't work very well because some v4 only systems decided that an MX without an A record meant my mail system was broken. Now I have one MX with both which works OK. Postfix has some parameters to say whether to prefer v4 or v6 at the same priority. Wietse says don't prefer v6, you'll lose mail. R's, John
Current thread:
- Re: IPv6 woes - RFC, (continued)
- Re: IPv6 woes - RFC Masataka Ohta (Sep 16)
- Re: IPv6 woes - RFC John Curran (Sep 17)
- Re: IPv6 woes - RFC Masataka Ohta (Sep 14)
- Message not available
- Re: IPv6 woes - RFC Michael Thomas (Sep 15)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 15)
- Re: IPv6 woes - RFC Michael Thomas (Sep 15)
- Re: IPv6 woes - RFC Carsten Bormann (Sep 16)
- Re: IPv6 woes - RFC Mark Tinka (Sep 13)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 13)
- Re: IPv6 woes - RFC Bill Woodcock (Sep 08)
- Re: IPv6 woes - RFC John Levine (Sep 08)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 08)
- Re: IPv6 woes - RFC Fred Baker (Sep 11)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 08)
- Re: IPv6 woes - RFC Niels Bakker (Sep 08)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 08)
- Re: IPv6 woes - RFC Bjørn Mork (Sep 10)
- Re: IPv6 woes - RFC Mark Andrews (Sep 10)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 19)
- Re: IPv6 woes - RFC sronan (Sep 06)
- if not v6, what? Michael Thomas (Sep 05)