Hi, welcome and thank you for your question. My name is ***** ***** I am glad to assist you today.
I am very sorry about your issues. To answer your question, unfortunately, there is NO way of knowing if you are blocked by your ex's Hotmail account. In fact, there is NO way of knowing if anybody has blocked your Gmail account. The main reason for this is because, when an email account like your ex's Hotmail blocked your incoming emails from your Gmail account, Hotmail will simply delete your email without moving or sending a copy to the Inbox or Trash folder so the email account owner does not see the email you sent. It is actually deleting your incoming email without storing any trace of it in the receiver's email account. And in this process, Gmail will not be notified so as a Gmail user, you will NOT know if the email was blocked.
What can be tested or checked is IF the email you sent was read or not. But that must be done before you SEND the email message. Since it was already sent, there is NO way of adding a request to it -- a read receipt request so there is no way to know if the email was indeed received and read or not.
At this point you have placed a deposit. I only receive credit for my time and expertise on the matter if you rate positively (3 to 5 stars/smileys).
It is up to you if you wish to credit me for my time or not. Your deposit is refundable should you choose you do not want to pay. Please DO NOT rate me negatively (1 to 2 stars/faces) if you want to get a refund. You can leave my answer unrated.
Here is the information on refunding:
Again I am very sorry if this is not the answer you wish to hear and I truly hate to be the bearer of this bad news. But unfortunately this is the truth on how emailing works and I just have to provide you the fact and non-biased information on the matter.
I hope I at least shed some light on the situation a bit for you and saved you some time.