How do I stop Mail embedding attachments in Catalina

Soltee1 wrote:

use an email standards compliant email client, however can you point me in the direction of a 3rd Party solution which modifies Mails treatment of attachments ?

You can search the Apple Mail User guide—you will find no entry for "attachments" :

https://support.apple.com/guide/mail/welcome/mac

Some ISP mail host depending on file size, number of attachments, etc —might show the first attachment in-line and the rest as icons... I would not get fixated on micro managing email, there are too many variables out of your control.

You can submit your Apple Feedback http://www.apple.com/feedback

Soltee1 wrote:

I want to stop Mail from embedding attachments as people receiving my emails cannot open the attachments without saving then opening them. I have tried the "Terminal" solution outlined in earlier questions about the subject but apparently this solution hasn't worked for a number of years

You Have no control over how someone else's email actually handles attachments.

different email clients

browser mail differences

host ISP differences in how they choose to display attachments

plain txt preferences vs html

etc

Make changes to display "in-line" attachments if that is what you want, to be visible.

for your self Mail >Preferences>Viewing

When working with the Terminal commands verify you understand the verbiage.

defaults write com.apple.mail DisableInlineAttachmentViewing -bool NO

If you do not want inline attachments showing to a recipient— compress the file of folder before you attach it

Control click>Compress this will zip the file/folder, this will guarantee it has to be unzipped before viewing.

I'm not sure that I can ask all recipients to use an email standards compliant email client,

That's what I tell them if they complain.

however can you point me in the direction of a 3rd Party solution which modifies Mails treatment of attachments ?

I have no idea. There was one, but I can't remember its name, and I don't know if it even still works.

You'd have to get a third-party solution to modify how Mail composes a message.

If you recipients used an email standards compliant email client, they wouldn't have any problems.