Exim4 outbound email disappeared

[kpv]

@kpv

the question is how should DNS MX and Exim4 be configured for each HestiaCP server hostname ? (best practices). Should I add a DNS MX record for each HestiaCP server to itself and also configure its fqdn as an Exim4 virtual domain for local delivery (I think we have discussed this again several months ago).

The config suggestions I remembered were posted 1.5yr ago here

But I would still be interested in any “best practices” config suggestions for operating e.g. 10 HestiaCP servers ( srv01.srv.mydomain.tld to srv10.srv.mydomain.tld )