SMTP: p@q
  sender: x@y
    from: x@y
      to: x@y
      cc: x@y
     bcc: x@y
reply-to: x@y
env-from: x@y
  env-to: x@y
    SMTP: p@q
  sender: a@b
    from: a@b
      to: a@b
      cc: a@b
     bcc: a@b
reply-to: a@b
env-from: a@b
  env-to: a@b
  sender: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
    from: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
      to: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
      cc: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
     bcc: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
reply-to: =?ISO-8859-1?Q?A=C4=C5=C6Z?= <2047@x.y>
env-from: 2047@x.y
  env-to: 2047@x.y
  sender: unq1@x.y
    from: unq1@x.y
      to: unq1@x.y
      cc: unq1@x.y
     bcc: unq1@x.y
reply-to: unq1@x.y
env-from: unq1@x.y
  env-to: unq1@x.y
  sender: a phrase <unq2@test.ex>
    from: a phrase <unq2@test.ex>
      to: a phrase <unq2@test.ex>
      cc: a phrase <unq2@test.ex>
     bcc: a phrase <unq2@test.ex>
reply-to: a phrase <unq2@test.ex>
env-from: unq2@test.ex
  env-to: unq2@test.ex
  sender: unq3@test.ex
    from: unq3@test.ex
      to: unq3@test.ex
      cc: unq3@test.ex
     bcc: unq3@test.ex
reply-to: unq3@test.ex
env-from: unq3@test.ex
  env-to: unq3@test.ex
  sender: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
    from: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
      to: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
      cc: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
     bcc: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
reply-to: "a 4. phrase" <4@22> =?ISO-8859-1?Q?=28a_comment_A=C4=C5=C6Z=29?=
env-from: 4@22
  env-to: 4@22
  sender: fw@fw
    from: harry <harry@we.de>
      to: fw@fw
      cc: fw@fw
     bcc: fw@fw
reply-to: fw@fw
env-from: fw@fw
  env-to: fw@fw
  sender: gw@fw
    from: =?ISO-8859-1?Q?h=E4rry?= <harry@we.de>
      to: gw@fw
      cc: gw@fw
     bcc: gw@fw
reply-to: gw@fw
env-from: gw@fw
  env-to: gw@fw
  sender: was-abc@abc
    from: was-abc@abc
      to: was-abc@abc
      cc: was-abc@abc
     bcc: was-abc@abc
reply-to: was-abc@abc
env-from: was-abc@abc
  env-to: was-abc@abc
  sender: ABC@abc
    from: ABC@abc
      to: ABC@abc
      cc: ABC@abc
     bcc: ABC@abc
reply-to: ABC@abc
env-from: ABC@abc
  env-to: ABC@abc