I go wireless, Mail goes crazy
I tried to set up our home wirelessly as follows: Cable modem hooked up to a wireless router. An ethernet cable from wireless router into an Airport Express. Two computers - an iMac and an iBook, both with Airport cards. It appears that everything with online access (Safari, online gaming, etc) is fine. However, since I've set this up, my Mail.app instantly goes offline. Error message says that my mail server cannot be reached at port 110 or something like that. The strange thing (to me) is that I haven't changed any settings - and everything worked fine earlier. The only difference was that the iMac was hard plugged with an ethernet connection. So why is my new airport connection killing Mail.app's ability to retrieve my mail?
In typing this, I've also realized that my wireless router is redundant - I would only need to run the Ethernet from my cable modem into the Airport Express, correct?
I really have no idea what I'm doing with this stuff - I heard Airport was so easy to set up, which it was, and as soon as I put everything together, I was so excited that I had no issues with Safari, etc. So the only thing that is broken as far as I can tell is Mail. Or more specifically Mail's ability to retrieve or send email.
Any thoughts? Thanks in advance.
20" iMac 2.16 C2D
14" iBook 1.25 G4
8 GB iPhone 3G, 500 GB Time Capsule
Airport Express, 40 GB AppleTV
Too many iPods
Kawasaki ZRX1200R and too many Audis
Apple stores: Edmonton, Fashion Valley Mall San Diego, University Towne Center San Diego, Ala Moana Shopping Centre Honolulu, Kalakaua Avenue Honolulu, Kahala Mall Honolulu, Calgary Market Mall