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Re: [ietf-smtp] SMTP Retrying/Sending Strategy on 452 / 4.5.3

2019-02-13 14:27:48
In article 
<12803(_dot_)1550087591(_at_)turing-police(_dot_)cc(_dot_)vt(_dot_)edu> you 
write:
On Wed, 13 Feb 2019 12:22:09 +0000, Дилян Палаузов said:

Is publishing 1024 distinct IPv6 addresses for MX on a domain a good idea

Only if you're *really* sure that everybody who wants to talk to you supports
at least EDNS0 and doesn't block tcp/53 :)

Let me simplify that answer:

No, it is not.

R's,
John
-- 
Regards,
John Levine, johnl(_at_)iecc(_dot_)com, Primary Perpetrator of "The Internet 
for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly

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