Unable to tweak the signature
Verizon - went to the BIS site and the signature for one particular email account shows the signature as being the standard "sent from my..." Somehow I added "Merry Christmas" to this a few weeks ago and now want to remove it. This addition doesn't show on the BIS site but is still on my outgoing emails. Hopefully it won't take me until next December to get it off. Any ideas? Thanks!
Changing signature and other email config settings.
Logging on the carrier's BIS page is not required ( at least not with Sprint) to change the default signature and other settings for your email configuration. It can be done from your BB without creating an account on BIS.
Have not test it but this may not work if you already have a BIS account.( I read somewhere something about it....)
Email Settings application will allow you to Add/Delete/Change your email settings including Signature and Auto BCC. It basically provide access to most if not all configurable settings for email.
Blackberry Curve 8330 Boost Mobile
You can modify the signature from the device. Go to email settings. Select the email account you want to modify. Easy!