ah, we also used 50 for ARC as a "maximum" hop count: https://datatracker.ietf.org/doc/html/rfc8617#section-4.2.1
Brandon On Wed, Mar 9, 2022 at 5:05 PM Brandon Long <bl...@google.com> wrote: > Ours was set to 50 years ago, and we renamed our internal hops to > X-Received to avoid issues with external receivers with stricter limits. > > The number of hops for most consumer mail isn't high, but enterprise > messages can have some really extended hops if it goes through nested > mailing lists and multiple third party relays for various services. > > Brandon > > On Wed, Mar 9, 2022 at 4:00 PM Kelsey Cummings via mailop < > mailop@mailop.org> wrote: > >> Greetings, we've been seeing some issues in our mail infrastructure with >> regular users hitting >25 hops on messages and I'm wondering if there's >> a general consensus that the old default of 25 is too low given modern >> mail flows. >> >> Have any of you had to increase it? Any one know what major ESP's have >> it limited to? >> >> -- >> kelsey.cummi...@sonic.com sonic.net, inc. >> System Architect 2260 Apollo Way >> 707.522.1000 <(707)%20522-1000> Santa Rosa, >> CA >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://list.mailop.org/listinfo/mailop >> >
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