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ABNF Notation
ABNF for IMF – Internet Message Format –
RFC 5322
Message Format
Fields
Address
Date‑Time
Lexical Tokens
IMF — Address
RFC 5322 – Section 3.4
–
Section 4.4
Section A.1
–
Section A.6.1
address
=
mailbox
/
group
mailbox
=
name‑addr
/
addr‑spec
name-addr
=
[
display-name
]
angle-addr
angle-addr
=
[
CFWS
] "
<
"
addr‑spec
"
>
" [
CFWS
] /
obs-angle-addr
group
=
display-name
"
:
" [
group-list
] "
;
" [
CFWS
]
display-name
=
phrase
mailbox-list
=
(
mailbox
*( "
,
"
mailbox
)  ) /
obs-mbox-list
address-list
=
(
address
*( "
,
"
address
) ) /
obs-addr-list
group-list
=
mailbox-list
/
CFWS
/
obs-group-list
obs-angle-addr
=
[
CFWS
] "
<
"
obs-route
addr‑spec
"
>
" [
CFWS
]
obs-route
=
obs-domain-list
"
:
"
obs-domain-list
=
*(
CFWS
/ "
,
" ) "
@
"
domain
*( "
,
" [
CFWS
] [ "
@
"
domain
] )
obs-mbox-list
=
*( [
CFWS
] "
,
" )
mailbox
*( "
,
" [
mailbox
/
CFWS
] )
obs-addr-list
=
*( [
CFWS
] "
,
" )
address
*( "
,
" [
address
/
CFWS
] )
obs-group-list
=
1*( [
CFWS
] "
,
" ) [
CFWS
]
addr-spec
=
local-part
"
@
"
domain
local-part
=
dot-atom
/
quoted‑string
/
obs-local-part
domain
=
dot-atom
/
domain-literal
/
obs-domain
domain-literal
=
[
CFWS
] "
[
" *( [
FWS
]
dtext
) [
FWS
] "
]
" [
CFWS
]
dtext
=
%d33-90 / %d94-126
; Printable US-ASCII characters not including "[", "]", or "\"
/
obs-dtext
obs-local-part
=
word
*( "
.
"
word
)
obs-domain
=
atom
*( "
.
"
atom
)
obs-dtext
=
obs-NO-WS-CTL
/
quoted‑pair