I'm having some trouble receiving the short SMS messages on my phone. Plain text ones work fine, but the short ones never make it. They show up in the sent folder of the address so they appear to be going out. I can even take one of those messages and forward it to my number and it goes through. It's only short SMS format messages sent by Alert Central that don't work.
Any ideas what may be causing it?
Found out what was happening. My provider (T-Mobile) was converting any email short enough to fit in an SMS to short codes, and then blocking them. Longer messages were converted to MMS and allowed through. After a few dozen tests they suddenly decided to start letting the short messages through, so everything's good now.