For example, I use the code below to insert the site's logo into messages I send from OWA but I need to copy the image as it appears in a browser. To insert images stored on a web server, you need view the image code in a browser and copy it. You'll also need to use HTML message format (set in OWA's Options.) Check in the Options, Email Security section. Note: This method will not work if you have the S/MIME Control installed. You can copy and paste to insert images into email too.

In Step 4 instead of typing in the message text, right click in the Edit signature text box and choose Paste.You can use the same method for images stored on web servers or HTML: open the image in a browser, select the image, copy, and paste.

Right click on the highlighted text and select Copy.

Open the message and choose Select | Select All in the Editing section.

Select your preference using the down arrow in the For Replies/Forwards: box.

Select your preference using the down arrow in the For New Messages: box.

Click in the box to type the text of the signature.

Type the name of the signature in the Edit signature name box.

In the Email Signature box, click the + New Signature link.

The window on the right side of the screen will now be active and you can draft the signature.

Click the ' +' at the bottom left of the screen to add a new signature.

Click Outlook (on the upper left) | Preferences | Signatures.

Click the OK button to close the Options menu.

Click the OK button to return to the Options menu.

Note: You must set default signatures for new messages and replies/forwards You may also change the message font and style if you would like. Enter any text in the Edit signature text box that will not change.Enter a name for your new signature (e.g., 'invite') and click OK.

Click the New button on the Signatures and Stationery window.

Choose File | Options | Mail and then click on the Signatures button.

How to add signature in outlook on web