Anyone use Mail Butler on Mac Mail?

[Contract Killer]

I installed this on my MacBook a while ago so I could schedule emails to go out at a certain time/date which worked well.

I have just realised it actually also confirms that a sent email has actually been read, along with the times and what device it has been read on!!

Its actually quite scary how it knows!!

It doesn't seem to work on every email, looks like a few private company domains it doesn't (they possibly have high security), however all the government (.gov) emails ive sent it works on. I would say 90% of the emails ive sent it works on.

Its amazing how many times some people read emails, one customer read an email 16 times on a whole host of different devices!!


Great tool for when someone says "oh I never received that invoice".
Oh thats funny Nigel, because you read it on..... with your......

Edited by Contract Killer on Wednesday 23 January 16:47

[mattley]

Contract Killer said:

Its amazing how many times some people read emails, one customer read an email 16 times on a whole host of different devices!!

That's probably a preview hit not an actual view, some of those devices could even be yours looking at sent items via a browser.

Contract Killer said:

Great tool for when someone says "oh I never received that invoice".
Oh thats funny Nigel, because you read it on..... with your......

I've always found that snooping on peoples mail client (especially as seen above, it's unreliable) endears me to my clients no end.

Also that looked at in Outlook in Windows 10 is properly suspect as Outlook displays a big message about not downloading images to protect your privacy, so in this instance your client has either whitelisted images in mails from you or is's a generic screen shot.