21st century reporting question

Let's say you text-message or email a source for a comment, and he doesn't respond, How would you phrase it in the story?

"Joe Blow did not respond to a message from the Podunk Press"?

Or do you have to specifically say that it was a text or email?

(By the way, for all but the simplest "one quick question" kind of thing, if I did text or email someone, it would be with a message that I wanted to talk to the person on the phone. The text/email would replace leaving a voice mail.)

 

Could not be reached for comment.

(You don't know that he received the email or text to respond to it.)

Now if you called, texted, emailed, etc. and the source had hours and you know he wasn't on a desert island or something, you could say he did not respond.

 

if you know they are avoiding, throwing in a "numerous attempts to reach soandso we unsuccessful."