How can I tell if an email I have sent has been opened?

  • Thread starter Thread starter Guest
  • Start date Start date
You can try using a Read Receipt but many users block the return of them
 
AT said:
As per subject.

Request a read receipt.

But-
it annoys most people,
most people don't send the receipt
You may get blocked by the recipients for annoying them.

People can still read your mail and cancel sending of the receipt.
 
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