One important distinction to make is that signatures are either handled by the client (Outlook, or mail.app), or by a tool that appends the signature after the email is sent. I tried that out just now (to pitch in), first-glance it doesn't appear to work with Outlook for Mac (latest version & patch) with Office365 Exchange.Īnd the question makes more sense to me now. The security implications of RECEIVING a signature that could potentially load anything from an unknown (to the recipient) website are not-zero (as in, a valid concern). This article suggests that absent some added product (and functionality it provides), that links are just that - hyperlinks. So to start with you'll need to find a program that explicitly supports Outlook for Mac. I've been working on doing the same thing for our users that want to use Microsoft Outlook for Mac instead of using Apple's mail.app but I am unable to create a signature file that hosts images on a web server. SigPro allows us to create signature files that refer all images in the signature to images located on a web server instead of sending the images as attachments. We use a program called SigPro for MacOS 10.13.x and below and MailSuite for MacOS 10.14.x which includes a newer version of SigPro. Please, is there anything I can do? The Microsoft Community doesn't have any useful answers for me. I can't even get it to work on a Windows version of Microsoft Outlook by referencing the files to a web hosted image. I've read several documents how to do it - simply copy an image from a web page and paste it into Microsoft Outlook's signature, but it doesn't work.

Our company recently switched from Rackspace IMAP mail to Microsoft 365 Exchange mail. I apologize in advance for the wordiness of this question:

Outlook for mac signature with logo