User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.2.15) Gecko/20110303 Ubuntu/10.04 (lucid) Firefox/3.6.15 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.14) Gecko/20110223 Thunderbird/3.1.8 The "double dash" signature delimiter works well for plain text emails, but it would be handy if it could be optionally disabled as it can ruin nicely designed HTML email signatures that have their own proper border styling. It's a decades-old established standard, and I'm sure the old guard will hate this suggestion, but it's a shame that there's not at least an option to remove it for those of us who just need some emails to look nice and can't justify the workload of moving an entire organisation to a different client. Reproducible: Always Steps to Reproduce: 1. Make a HTML email signature 2. Try to remove the delimiter Actual Results: It is not possible to remove the delimiter Expected Results: It should be possible to remove the delimiter