Please, make sure your Outlook app version is 4.8.1 or higher.
In order to install the signature in Outlook app on iPhone you need to insert the HTML code to the app Settings.
Step 1. Hover over the signature on the dashboard > click Use > Use by Myself
Step 2. Save and Install > choose Other > HTML > Tap on any part of the code and choose Select All > Copy
Step 3. Open Outlook Settings on iPhone and choose the Signature block.
Step 4. Erase the default signature. Paste the code you copied into the placeholder.
And your signature is ready!
Let us know if you have any questions or suggestions.
Enjoy using NEWOLDSTAMP!