utf-8 can be safely detected without making assumptions on the
encoding/locale used by the recipient.
Content-Transfer-Encoding for utf-8 patches is base64 (default of
python's email module).
- headencode, addressencode: encode headers
- mimeencode: encode message parts not containing patches
- new email config "charsets"
Users may configure email.charsets as a list of charsets they
consider appropriate for the recipients of their outgoing mails.
Conversion is tried in this order:
1. us-ascii
(ascii, us-ascii are removed from email.charsets if present)
2. email.charsets (if present) in order given
3. util._fallbackencoding, util._encoding, utf-8
if not already in email.charsets
- simplify mail._sendmail to be a function rather than a class
- simplify connect to return a function rather than a class
- move exception handling from mail.sendmail to mail.connect
- use a single connection for all messages in patchbomb
