how can I get the information that my mail has been opened by the recipient

BDAqua wrote:

Hi Elmar,

I'd guess 99.999% are not going to acknowledge, but there is Read Receipts...

Get Notifications When Your Messages Are Read in macOS Mail (lifewire.com)

Interesting. Did not know that was a thing that could be done through Terminal. Seems rather odd that Apple would not just provide a switch for it.

The Mai app for Mac does not natively support the Read Receipt functionality.

Other email clients like Outlook, Gmail, Thunderbird etc... do. Its a fairly standard feature, mostly used in corporate environments.

Hi Elmar,

I'd guess 99.999% are not going to acknowledge, but there is Read Receipts...

Get Notifications When Your Messages Are Read in macOS Mail (lifewire.com)

One could alway include in the outgoing e-mail " Please Acknowledge Receipt to this e-mail "

As to whether or not that will work will depend on the receiver of the e-mail

It's not possible unless the recipient emails you back and says "I opened your email". Of course they could just be saying that.

If you could do that and you sent me an email it would be the last email I read from you. It is none of your business if or when I read my email.

Yeah, perhaps Apple feels almost nobody would or does use it anymore in this day & age!?

BDAqua wrote:

Yeah, perhaps Apple feels almost nobody would or does use it anymore in this day & age!?

Possibly.