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Prevent Forwarding of emails

Years ago while still working, I could check a box in emails I wrote using Lotus Notes Mail that would prevent the recipient from forwarding it to other addressees. The recipient was able to reply only to me, the sender and could not forward the email nor "Reply" and add extra addressees. Does MacOS Mail have such a provision?

iMac Line (2012 and Later)

Posted on Oct 9, 2022 4:54 AM

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Posted on Oct 9, 2022 7:36 AM

Notes had a lot of sophisticated features that were lost on the general population and were never implemented by other vendors.


IBM sold off Notes/Domino three years ago to an Indian IT company called HCL Technologies. HCL continues to develop & market Notes/Domino ... but it remains to be seen if it's just a "maintain the base" strategy or if HCL intends to really market the products.

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Oct 9, 2022 7:36 AM in response to jlaltemose

Notes had a lot of sophisticated features that were lost on the general population and were never implemented by other vendors.


IBM sold off Notes/Domino three years ago to an Indian IT company called HCL Technologies. HCL continues to develop & market Notes/Domino ... but it remains to be seen if it's just a "maintain the base" strategy or if HCL intends to really market the products.

Oct 9, 2022 10:01 AM in response to PRP_53

P. Phillips wrote:

macOS 13 Ventura

Something to look forwards to in Ventura


https://discussions.apple.com/content/attachment/42a1ea31-ae9e-428f-af46-1cffb09c6c13

The ability to "unsend an email you just sent" is interesting, but likely will be limited. For instance, GMAIL allows that but only for a few seconds, no doubt it has to do with handling of the email within the GMAIL servers while it is under GMAIL control.


To unsend an email sent via Apple Mail, I am guessing that Mail will delay actually sending it for a few seconds to give the sender a chance to change their mind. "... just sent" might mean ~ 5 seconds. But once it is sent and downloaded to a user's computer or some other mail system, I don't think there is any reliable way to retrieve it.


MS-Exchange used to have a feature where one could "unsend" an email, but now all that happens is the recipient gets a message that "xxx wants to recall an email message" sent moments earlier. Makes me tend to read the email even more to find out why they are trying to "recall" it!

Oct 9, 2022 8:30 AM in response to jlaltemose

jlaltemose wrote:

TNX. My ask had only to do with trying to control some people with whom I communicate from forwarding an email with a sensitive or controversial comment on some topic to others who I did not intend to have in the loop. As my wife says, just use the phone! Again thanks.

You have no, nor should you have, any control over what someone does with their email or what they communicate to others. If you don't want your words to be communicated to others, don't start the conversation. Even if there was a "do not forward" restriction in email, there would be nothing stopping the recipient from copying and pasting your words into another email. Or you could not stop them from reading your email over the phone to someone else. Blocking forwarding seems, to me at least, to be an exercise in futility. People spread the word if they want to and you can not stop them from doing so.

Of course there are legal means or business policies that may block people from spreading the word.

Oct 9, 2022 8:43 AM in response to sgucukoglu

sgucukoglu wrote:

No, and both disposition notification and delivery status notification (read and delivery receipts, respectively) are standardised. I consider the lack of the second of these to be deeply unfortunate since it is genuinely useful, and even iCloud Mail supports it.

It is no one's business if I received or read an email. If you need a receipt, ask for me to provide one to you in the body of your email. I will decide whether or not to send you a receipt. If you forced an automated receipt from me it would be the last email I ever read from you. I would block your emails.

Oct 9, 2022 9:10 AM in response to BobTheFisherman

BobTheFisherman wrote:
It is no one's business if I received or read an email. If you need a receipt, ask for me to provide one to you in the body of your email. I will decide whether or not to send you a receipt. If you forced an automated receipt from me it would be the last email I ever read from you. I would block your emails.


DSN is negotiated by the mail servers that handle the message, on request by the client. Every message in effect has a DSN request of "failure" by default, i.e. a non-delivery report when the message permanently fails to be delivered. You can disable this with DSN and get no notice at all whatever the outcome, or add transient failures (warnings about delays, which some mail software also often does by default) and success notices (positive affirmation of delivery). If success is requested but the remote server doesn't support DSN, you are informed that the relay occurred, even though you don't receive positive affirmation of actual delivery. Most email is delivered directly, from sending site to receiving site. The practical benefit is then that you know, with a fairly high degree of certainty, that at least the destination site now has your email, and when this is. This is useful information and doesn't invade your privacy. (I too disable read receipts.)

Prevent Forwarding of emails

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