Thats because you don't have a DNS entry for mail.myapp.com - you will need to create a CNAME record for mail pointing to ghs.google.com

It sounds like you used to have a wildcard record catching each and every subdomain for your site and had it point to dreamhost (this is common for cpanel installations), and when this migration happened, it nuked your wildcard entry, which is why you had to put back your blog DNS entry and point it back to dreamhost.

When you contacted DreamHost about your mail settings, they gave you the settings for their email hosting, not google apps.

DNS/MX issues arising when migrating Heroku app to Dream Host hosted domain
Two gangsters are flying down I-70 West at a constant 108 hm/hr. If they make it to Indiana, they will be safe. When they are 1 km away from the Indiana border, while still traveling at a constant 108 km/hr, they pass a concealed police car hidden in a speed trap. At the instant that the criminals pass the patrol car, the cop pulls onto the highway and accelerates at a constant rate of 2 m/s^2. Does the cop catch up with them before they cross the state line?

Here's what I have progressed so far


  ΔV = (ΔX)/(T)
  
  when V is velocity, X is distance, and T is time.
  
  108 = (1 - 0)/T
  
  108T = 1
  
  T = 1/108
  
  T = 0.00925 hours
  
  T = 0.00925 * 60 * 60
  
  T = 33.33 seconds (this is the time it takes the gangsters to get to
  the borders of Indiana)


What I am stuck at is the time it takes the cop to travel the same distance. I have used the distance formula to find time as follows:


  Xf = Xi + 1/2 * A * T^2
  
  where A is acceleration
  
  Since the cop is starting from rest, the initial velocity is 0 (zero),
  so
  
  1 = 0 + 1/2 * (2) * T^2
  
  1 = T^2
  
  T = 1 seconds


So it takes the cop 1 seconds to travel the whole mile to Indiana? What am I doing wrong?
