The original standard for mailto:
links, RFC 1738, says this:
A mailto URL takes the form:
mailto:<rfc822-addr-spec>
where <rfc822-addr-spec>
is (the encoding of an) addr-spec
, as
specified in RFC 822 [6].
Under that definition, no proper name could be included.
But the mailto:
section of RFC 1738 has been superseded by RFC 2368, which allows (among other things, including predefined subject lines) for an RFC 822 mailbox
specification—which includes a proper name.
[2016-05-31] As David Bala?ic points out in a comment, RFC 2368 is in turn obsoleted by RFC 6068. From Section 9, “Main Changes from RFC 2368”:
The main changes from RFC 2368 are as follows:
In actual use, mailto:Fred Foo<[email protected]>
still seems to work, but it’s not officially supported; you may also have to encode the space, i.e., mailto:Fred%20Foo<[email protected]>
, and/or put the name in quotes, i.e., mailto:"Fred Foo"<[email protected]>
.
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