Hi! I've generally found the reason I wasn't getting a test email was an error within a token somewhere. Unfortunately Marketo won't tell you what or where the error lies, but yes - check out your tokens/token formatting in the to/from section!
Came here to say the same thing - last time this happened to me, it was an error with the token in the email, but Marketo didn't indicate which token/where it was.
Check your communication limits. You can change your daily count to unlimited, send a test and then change it back
Sending sample emails don't count in the communication limits. But if she wants to send a true email as a test then yes, it counts towards the comm limits.
yes, it is not suppoesed to but this has happened to us. As soon as I updated the communication limits, the sample went thru.
Have you tried sending the test email from a smart campaign?
Smart List --> Email is {your email address}
Flow --> Send email
Schedule -> Edit -> Qualify person more than once (if you would like to send the email multiple times to yourself)
We use this method when sending test emails, rather than Send Sample.
I hope this will help.