Comment 27 for bug 369150

(In reply to comment #26)
> More examples: Thunderbird Version 1.0 (20041206)
>
> Working:
>
> =?ISO-8859-1?Q?Andreas_Niederl=E4nder?= <email address hidden>

The problem is not with embedded spaces in the encoded string, but with commas.

> Not working:
>
> "Biehl, Alexander" <email address hidden>

Testing this, it is "working" for me -- that is, replying to a from header
containing that string, the To: in the reply matches that string.

> =?iso-8859-1?Q?Altpeter-R=FCb_Dr=2E_Herbert=2C_ITS-IT?=
> <email address hidden>

This last example is basically the same as that described in the original
report.