For the logs and Google: I just found out that Mozilla Thunderbird is pretty clever at handling line wrapping:
“To start with, Thunderbird/Mozilla is pretty cool because it really understands the text/plain; format=flowed content type. This means that you type paragraphs as one big line but the email gets sent with paragraphs wrapped at (something like) 72 characters. And then when you view it again, the line wrapping gets removed and paragraphs flow depending on the size of the viewer pane.”
(Source: madbean.com)