Network.Parser.Rfc2822
no_ws_ctl_pred
no_ws_ctl
text
specials_pred
specials
wsps
fws
ctext
comment
cfws
atext_pred
atext
atom
dot_atom_text
dot_atom
qtext_pred
qtext
qcontent
quoted_string
word
phrase
utext
address
mailbox
name_addr
angle_addr
group
display_name
mailbox_list
address_list
addr_spec
local_part
domain
domain_literal
dcontent
dtext_pred
dtext
message_id
msg_id
id_left
id_right
no_fold_quote
no_fold_literal
data NameAddress