I hope this is not too confusing.  I am not new to OSX, but I finally decided to use the Mail app for the first time.  Setup was easy and I have been on it for about a month.  I have the following accounts on it:
Microsoft Exchange Account
Gmail Account #1
Gmail Account #2
Yahoo Account #1
Yahoo Account #2
Today I sent an email to ~30 recipients from Gmail account #1. The email shows up in my sent folder as being sent from Gmail account #1. But, when people started replying, it came to Gmail account #2. I verified with people I sent it to that it came from Gmail account #2. Any ideas what the problem could be?
	
		
			
		
		
	
				
			Microsoft Exchange Account
Gmail Account #1
Gmail Account #2
Yahoo Account #1
Yahoo Account #2
Today I sent an email to ~30 recipients from Gmail account #1. The email shows up in my sent folder as being sent from Gmail account #1. But, when people started replying, it came to Gmail account #2. I verified with people I sent it to that it came from Gmail account #2. Any ideas what the problem could be?