// REFERENCE
MX record
Type number: 15
Indicates which servers receive the domain's mail, with a priority (lower = preferred). Without a correct MX, emails don't arrive. Always pair it with SPF, DKIM and DMARC.
Related tools
Related
spf
SPF record (in TXT) dkim
DKIM record (in TXT) dmarc
DMARC record (in TXT) openpgpkey
OPENPGPKEY record smimea
SMIMEA record
SPF record (in TXT) dkim
DKIM record (in TXT) dmarc
DMARC record (in TXT) openpgpkey
OPENPGPKEY record smimea
SMIMEA record
Types per the IANA DNS parameters registry and their RFCs. Educational content.