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emailheadermime

Is there a standard format for email addresses in MIME messages?

When I get an email, there is a header From: in the actual MIME message that specifies who the sender of the email is.

I notice that the format of that particular header is sometimes:

From: user@domain.com

or

From: Human Readable Name <user@domain.com>

Are these the only ways that standard clients format the From: header? Or are there others I should be aware of?

Solution

  • They are documented in RFC 5321 and RFC 5322.

    And you may also be interested in RFC 2047.