Since i new where the packages came from, and assuming the site hasn't been hacked, to get the packages to install I disabled the GPG.
And changed pgpcheck=1 to 0
After the install, which went off without any errors I set this back to 1.
Now I just need to run on of the ISPConfig files to reconfigure dovecot.
I saw the file in one of the posts on this forum, now I just have to find it again.