Some e-mail hosts block things they consider to be spam BEFORE even letting it thru to the recipient at all – even to their spam or junk folder.

Thanks for the article it did help! But I have two questions…….ġ) “Delivery receipt confirming the message was delivered to the recipient’s e-mail server”… This is not a fool-proof way to verify if email was received or delivered. Please note however that delivery and read receipts can be turned off by the recipient or email server administrator on the recipient end. Choose a selection under “ For any message received that includes a read receipt request“.You can tell Outlook what action to take on email when the sender sends you a request for a read receipt with these steps. Now when you send the message, you will receive a receipt if the email is read or delivered. Select the “ Delivery receipt confirming the message was delivered to the recipient’s e-mail server” and/or “ Read receipt confirming the recipient viewed the message” as desired.

Scroll down to the “ Tracking” section.

From the main Outlook screen, select “ File” > “ Options“.

These settings will control whether or not receipts are sent from your Outlook client when you send an email message. Request Receipts on All Sent Messages by Default

Request a read receipt for this message.

Request a delivery receipt for this message.

Under the “ Tracking” section, select the check box for one or both of the following:.

While writing your message, select the “ Options” tab.

This option will send a request for a read receipt with a single message that is sent from your Outlook client. Request Receipts when Sending Single Message

Request outlook read receipt