I just did another test, and this is what I found...
Yahoo -- can send mail from x10 to yahoo; can receive mail on x10 from yahoo
Gmail -- can send mail from x10 to gmail; not receiving mail from gmail
Hotmail -- not receiving mail at hotmail from x10; not receiving mail at x10 from hotmail
So, if I use Google Apps, does server downtime like this have any impact on my mail since I'm using their server, but my domain and MX records are on x10 and pointing to Google?
Could you explain what is the test for? Did you test it to know whether it works when x10 mail is down, or is it general use of Mail services for Domain?
I did the test because the mail service was not working properly and I have web-based accounts with yahoo, gmail, and hotmail. Currently, I can send to all 3 (gmail, hotmail, yahoo), but only receiving mail at x10 address from yahoo...mail from hotmail and gmail accounts is not getting through...