What is the difference of RFC 5322, RFC 821 and implementations of javax.mail.internet.InternetAddress ?

• Test for RFC 5322: https://gist.github.com/satob/0dc003aefe020d5f1e9263bd7e173f9f (with regexp in http://www.din.or.jp/~ohzaki/mail_regex.htm#RFC)
• Test for RFC 821: https://gist.github.com/satob/8c5a42cf636732d81b850b58e8808eef (with regexp in http://www.din.or.jp/~ohzaki/perl.htm#Mail)

#	Address	Oracle JavaMail 1.6.2	GNU JavaMail 1.1.2	Geronimo JavaMail 1.8.4	RFC 5322	RFC 821
1	abc.def@example.com	valid	valid	valid	valid	valid
2	"abc.def"@example.com	valid	invalid	valid	valid	valid
3	"abc.\n def"@example.com	valid	invalid	valid	invalid	invalid
4	"abc"."def"@example.com	invalid	invalid	valid	valid	valid
5	'abc.def'@example.com	valid	valid	valid	valid	valid
6	'abc.\n def'@example.com	invalid	invalid	valid	invalid	invalid
7	'foo'.'bar'@example.com	valid	valid	valid	valid	valid
8	(abc)abc.def@example.com	valid	invalid	valid	valid	valid
9	(abc) abc.def@example.com	valid	invalid	valid	valid	valid
10	<abc.def@example.com>	valid	invalid	valid	invalid	invalid
11	<abc\n .def@example.com>	invalid	invalid	valid	invalid	invalid
12	<abc"def"ghi@example.com>	invalid	invalid	invalid	invalid	invalid
13	foo bar <abc.def@example.com>	valid	invalid	valid	invalid	valid
14	'foo bar' <abc.def@example.com>	valid	invalid	valid	invalid	valid
15	"foo bar" <abc.def@example.com>	valid	invalid	valid	invalid	valid
16	abc.def@[example.com]	valid	invalid	valid	valid	valid
17	abc.def@[exa mple.com]	invalid	invalid	valid	valid	valid
18	abc.def@[exa\nmple.com]	invalid	invalid	valid	invalid	invalid
19	abc.def@[example."hoge".com]	valid	invalid	valid	valid	valid
20	,abc.def@example.com	valid	invalid	invalid	invalid	invalid
21	;abc.def@example.com	valid	invalid	invalid	invalid	invalid
22	abc..def@example.com	invalid	valid	invalid	invalid	invalid
23	abc.def.@example.com	invalid	valid	invalid	invalid	invalid
24	.abc.def@example.com	invalid	valid	invalid	invalid	invalid
25	⛄bc.def@example.com	valid	valid	invalid	invalid	invalid
26	abc.def@localhost	valid	valid	valid	valid	valid
27	abc.def@e.c	valid	valid	valid	valid	valid
28	abc.def@e.co	valid	valid	valid	valid	valid
29	abc.def@-.com	valid	valid	valid	valid	valid
30	abc.def@203.0.113.1	valid	valid	valid	valid	valid
31	ABC.DEF@example.com	valid	valid	valid	valid	valid
32	"<script>" <abc.def@example.com>	valid	invalid	valid	invalid	valid
33	'<script>' <abc.def@example.com>	invalid	invalid	invalid	invalid	invalid

• The behavior of Jakarta JavaMail is same as Oracle JavaMail.
• Apache TomEE 8.0.3 uses Geronimo JavaMail 1.9.0alpha2.
• GlassFish 5.1.0 uses Jakarta JavaMail 1.6.3.
• Oracle GlassFish 3.1.2 uses Oracle JavaMail 1.6.0.
• GlassFish 5.1.0 uses Oracle JavaMail 1.6.3.
• Payara Server 5.2020.2 uses Jakarta JavaMail 1.6.4.
• Wildfly 20.0.1 uses Jakarta JavaMail 1.6.5.