[GailA]

put her company name on her e-mail

This is what got her fired.

[Question_Assumptions]

A lot of email programs have automatic signatures. It is easy enough to send out an email from your company address with your company name on it without thinking twice. Yes, I know it is stupid but I'd rather cut people a break and give them an opportunity to appoligize or try to make amends than to simply fire them.