#3 after the im allegedly went through,
If a PM does not go through to one or more recipients, you'll get an error page showing the following:
Unable to find cousin 'X'.and
One or more 'to'-recipients could not be found.Also, the word To: will show up in red.
If, at the same time, the PM was successfully sent to one or more recipients, that same page will also display this:
PM successfully sent to 'X'.If you don't see the error page and your browser hasn't terminated the session for some reason, you can assume that your PM went through to all the recipients you listed.