eMail being rejected again

I had an issue with emails being rejected by FreeToastHost, and we fixed it for a while, now it's back.
The email checker reports:
Member Jim Robison, DTM jim@jimrobison.org Bad
Member Jim Robison, DTM jim@forwardsupport.com Bad

I use both emails all the time, so I know they work. We just recently (within the last week) upgraded the server that both emails are hosted on, so that may have had an impact, but also should make everything work better.

Any information you can provide to fix this properly would be appreciated.

thanks,

Jim Robison
Portland Toastmasters, Club #31

Now, because of this, when I try to edit our home page, I get the following message:

You have errors in your form below. Please scroll down and correct the following:
Administrator Info Tab - You have entered an invalid or non-working e-mail address. (No advertised SMTP servers are accepting mail.) One email address only please, in the form of name@address.com.

The "form below" is the page I am editing and does not have the email address in it, yet it will not save my edits.

jim

You are hosting at a datacenter that continues to spam FTH. I have open the IP for now but if we continue to receive spam we will block again.

As far as you second statement you are the site admin and no email is used when you log in as the site admin.