I can't send but I can receive iMessages!

Try this:

1) Settings

2) General

3) Reset

4) Reset Network Settings

This will reestablish the link for the cellular connection and the cellular data as well as the saved WiFi connections will be reset.

Also Check this:

1) Settings

2) Messaging

3) Ensure iMessage is turned on (sometimes it will turn itself off for some reason)

4) Press on Send & Receive

5) Ensure that all emails you want to be reached at as well as your phone number are listed there

Remember that iMessage requires a data connection so with out either cellular data or WiFi it will not work.

My phone is a year old and I have wifi setups for about 8-10 locations, many of which I only use occassionally. If rebooting helps me from having to re-enter some of those 2-3 months from now when I need it, and I have to dig to find the WiFi password, I'll reboot every day until Apple fixes it.

To each his own. I've seen posts that the reset network connection is temporary as well. Perhaps it does last longer than the reboot. If you only have 1-2 wifi networks saved, that would be easier.

This bug seems to be getting enough attention here and on the web in general that I don't think it will be around too long. I am sure Apple is working on it. Heck, they probably have quite a few employees with a 5 and have upgraded that are hitting the same issue. 🙂

Rebooting will work for a little while but eventually the same issue with your connection is going to happen and then you're just going to restart your phone. After upgrading to your new phone there might have been carrier settings that updated or a bug in the connection, resetting your Network Settings is a quick easy fix that lasts longer than having to reboot your phone multiple times. WiFi passwords only take a few seconds to enter after all 😀

I have the same issue on an iPhone 5 that has been upgraded. I just reboot. That fixes it temporarliy and doesn't wipe out my wifi settings.