can I save multiple emails as 1 pdf?

I found this and it is really making my life easier for record keeping, but It seems to work one email at a time.

http://www.apple.com/findouthow/mac/#email

I have been moving over 15 domain names to another server and I get 30 confirm emails from each server. I exported 15 emails and combined them as one .pdf, but that was very time consuming. I also had to rename my files.

I have a lot of records going back and forth between these two web hosts and I want to keep records.

Can I export multiple emails into one .pdf document?

Thanks.