Connected: An Internet Encyclopedia
5.3.5 Domain Name Support
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5.3.5 Domain Name Support
5.3.5 Domain Name Support
SMTP implementations MUST use the mechanism defined in Section
6.1 for mapping between domain names and IP addresses. This
means that every Internet SMTP MUST include support for the
Internet DNS.
In particular, a sender-SMTP MUST support the MX record scheme
[SMTP:3]. See also Section 7.4 of [DNS:2] for information on
domain name support for SMTP.
Next: 5.3.6 Mailing Lists and Aliases
Connected: An Internet Encyclopedia
5.3.5 Domain Name Support