Exchange 421 EHLO MXIN201 Your HELO/EHLO is not matching your DNS configuration

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死守一世寂寞
死守一世寂寞 2021-02-04 20:52

have an exchange 2019 server which can send emails to the majority of domains, however for some I get

421 EHLO MXIN201 Your HELO/EHLO Elec247Server.Elec247Domain.local is

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