Just to expand on what Steffan said, once you get your identities configured correctly you will be able to control outgoing messages as if they originated from the email account you wish.  The key is one identity per email account.  Each identity should contain an appropriate default "reply to" address and an appropriate "My Internet e-mail address is" which is configured in the Internet Options.  Test by changing a setting then sending a test message to one of your other email accounts to see what the change affected. 

 As for the spell checker, there is no way to have it correct as you go.  There is an option to configure Pegasus to check spelling before sending which insures that you always spell check before a send.  I prefer invoking the spell checker on demand

I have Pegasus set up and it is checking all 4 of my pop 3 email accounts. However it only allows me to send from the main/ default email address.

I set up my signatures and I have the ID's set up. But even if I select one of the non default ID's it still goes to my recipient showing my default id.

How do I fix that or is it not possible in Pegasus. I did it all the time in Eudora?

2. Is there a way to respond to an email without that box of options coming up? Itsvery annoting when you have 100's of emails to responbd too.

3. Is there a way to have spell check correct as you go or as you write the email? I tried the spell check but it brings up the pop up box and no matter  if I say ignore or what it asks if I want to  start over and never lets me send the mail.

what am i doing wrong?

After using Eudora for 15 years this Pegasus is giving me a breakdown! It is so complicated...........................

1. Sounds to me like you haven't set up your identities correctly. When creating a new identity, you can base it on another one, but you have to change/create settings for each individual identity.

2. There is. When you reply to a message, click the arrow next to the reply button and tell Pegasus which reply options to use by default.

3. Sorry, I don't use spell-check, so I can't tell you anything about it.

Hope this helps.

Cheers!