Re: IPv6 recap
Mario Roberto Ferreira <[email protected]>
| Newsgroups | gmane.mail.imap.courier.general |
|---|---|
| Message-ID | <CABSW8ZzvXQ+NYZpP3JROes4eu2mnHCOVTJrEt2xc9Uc_ARf8QQ@mail.gmail.com> |
Question from last time...lol Reverse... until when will it be necessary? In my opinion, it should be extinct. Em sex., 5 de abr. de 2024 às 08:53, Alessandro Vesely <[email protected]> escreveu: > Hi, > > this happened again, but this time caused a bounce: > > <<< 554 resimta-c2p-559421.sys.comcast.net > resimta-c2p-559421.sys.comcast.net 2a02:29e1:500:6c00::4 Comcast requires > that all mail servers must have a PTR record with a valid Reverse DNS > entry. Currently your mail server does not fill that requirement. For more > information, refer to: > https://postmaster.comcast.net/smtp-error-codes.php#554 > > Is it possible to inhibit use of IPv6 a little bit harder? > > There's no way I can get a reverse address for 2a02:29e1:500:6c00::/56, as > my provider itself didn't get a delegation for its 2a02:29e1::/32. It goes > to 2a:: in RIPE: > > ; <<>> DiG 9.18.24-1-Debian <<>> 1.e.9.2.2.0.a.2.ip6.arpa ns > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19800 > ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 1232 > ; COOKIE: cad8ae482b0e559c01000000660fe49763aa815e05fda159 (good) > ;; QUESTION SECTION: > ;1.e.9.2.2.0.a.2.ip6.arpa. IN NS > > ;; AUTHORITY SECTION: > 0.a.2.ip6.arpa. 3600 IN SOA pri.authdns.ripe.net. > dns.ripe.net. 1712314758 3600 600 864000 3600 > > > Best > Ale > > > On Mon 01/Apr/2024 12:18:52 +0200 Alessandro Vesely wrote: > > On Sun 24/Mar/2024 13:00:34 +0100 Alessandro Vesely wrote: > >> > >> I ended up setting two new IPv6 addresses. One for outgoing mail, in > ip6out > >> and SPF record. The other for incoming, set in esmtpd's PORT variable > and > >> published as a secondary MX which only has an AAAA address. > >> > >> Thus far neither happened to be used. > > > > > > Update: one was used yesterday, for outgoing mail: > > > > Mar 31 04:47:04 22 north courieresmtp: > > id=00000000005DC23B.000000006608CEA7.000063AD,from=<[email protected] > >,addr=<[email protected]>: 250 2.0.0 OK 1711853224 > g24-20020a1709063b1800b00a47484f15e9si3262997ejf.241 - gsmtp > > Mar 31 04:47:04 22 north courieresmtp: > > id=00000000005DC23B.000000006608CEA7.000063AD,from=<[email protected] > >,addr=<[email protected]>,success: delivered: alt1.aspmx.l.google.com > [2a00:1450:4025:c03::1b] > > Mar 31 04:47:04 22 north courieresmtp: > > id=00000000005DC23B.000000006608CEA7.000063AD,from=<[email protected] > >,addr=<[email protected]>,status: success > > > > Probably due to a delayed response to the A query. > > > > > > Best > > Ale > > > _______________________________________________ > courier-users mailing list > [email protected] > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users > _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users