I am getting quite a number of emails that cannot be sent since 26 Feb 2020. In exim_mainlog, the error is shown as "DANE error: tlsa lookup DEFER".
When I check the domain using DANE SMTP Validator, it says no TLSA records.
Even for a domain with TLSA record, my server still cannot send to it.
Please advise what could be wrong.
When I check the domain using DANE SMTP Validator, it says no TLSA records.
Even for a domain with TLSA record, my server still cannot send to it.
Please advise what could be wrong.
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