[opensuse] Force Thunderbird to use ASCII only in plain text

Anyone know of a way to force Thunderbird to use ASCII only for outgoing e-mails? I'm trying to get rid of the hard-space (0xA0) for the first of two spaces after a period. Some e-mail and maybe mail servers don't handle it well. It is replaced by two question marks on the other end. I've used the config editor to set mailnews.send_default_charset to ASCII (ends up 8bit in e-mail header) and 7bit. Neither works. TIA, Jeffrey -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org