by Tomas » Wed Mar 31, 2010 11:37 am
I can only confirm the above, best way would be to use menu Tools > Options, Quoting Text, in automatic headers make the solid line using the keyboard.
It will be possible to use a script but maybe too complicated (a custom version of an existing InsertHTML script)...InsertHTML can only be run manually on outgoing messages, I'm not sure right now whether the customized script would also need to be run manually each time or whether it would be possible to set it to be run against outgoing messages automatically...how the script works is that it replaces a unique string in your email (inserted eg. through automatic headers as above) with the HTML (HR tag in this case).
I'm bit on a run and don't have time right now but if you'll be interested in the script solution despite it being cumbersome please let me know and I can get to it over weekend.
Tomas