On 02/03/2021 10.28, Otto J. Makela via mailop wrote: > Unfortunately, RFC 7208 section 4.6.4 DNS Lookup limits also states: > > As described at the end of Section 11.1, there may be cases where it > is useful to limit the number of "terms" for which DNS queries return > either a positive answer (RCODE 0) with an answer count of 0, or a > "Name Error" (RCODE 3) answer. These are sometimes collectively > referred to as "void lookups". SPF implementations SHOULD limit > "void lookups" to two. An implementation MAY choose to make such a > limit configurable. In this case, a default of two is RECOMMENDED. > > I read this as meaning most implementations will let you only have > two NOERRORs, and then it's game over. As I said, I doubt SPF was > intended to cause this side effect.
This being the case, I would probably need to configure sendmail to prefer IPv4 for outgoing mail. Does anyone have a ready recipe for sendmail-8.14.7-6.el7 handy, as the methodology seems to have changed quite a lot over the versions? (I can of course force it for individual domains using mailertable, but this once again doesn't really scale) -- /* * * Otto J. Makela <o...@iki.fi> * * * * * * * * * */ /* Phone: +358 40 765 5772, ICBM: N 60 10' E 24 55' */ /* Mail: Mechelininkatu 26 B 27, FI-00100 Helsinki */ /* * * Computers Rule 01001111 01001011 * * * * * * */ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
