Dr.Dobb's Blog Portal posts "D's the Real Deal -- Finally"

[Frits van Bommel]

Bradley Smith wrote:
> Thunderbird line wrapping is configurable.
> See Tools/Options.../Composition/General/Wrap plain text messages at _ 
> characters.

For the record, start with Edit/Preferences on Linux.

Also, I think this isn't Thunderbird's fault; it looks like it was 
posted that way.
(And for the pedantic: the OP has 'User-Agent: PHP News Reader v2.6.4 
(CDSHEEN)' in its headers so I'm pretty sure it wasn't Thunderbird ;) )