I didn't know this, thank you for this very useful information. If you have a signature set up in Gmail, whenever you compose a new email, Gmail will insert "-

I didn't know this, thank you for this very useful information. If you have a signature set up in Gmail, whenever you compose a new email, Gmail will insert "-- \n" in the textarea just before the signature. It used to annoy me to no end as I could not find the '--' in my original signature. Now I know better. Thank you for helping out a geek with an OCD.