From user@domain  Fri Feb 22 23:00:00 2008 +0200
From: foo bar <a@b.c>

1

From user@domain  Fri Feb 22 23:00:00 2008 +0200
From: b@c.d

2

From user@domain  Fri Feb 22 23:00:00 2008 +0200
From: d

3

From user@domain  Fri Feb 22 23:00:00 2008 +0200
From: =?iso-8859-1?q?foo_aar?= <e@f.g>

4

From user@domain  Fri Feb 22 23:00:00 2008 +0200
From: =?iso-8859-1?q?foo_car?= <f@g.h>

5