You can login and change the promo banner image at any time. Remember the size always has to be 335 pixels wide by 100 pixels high.
If you’re using the team plan, and you want staff email signatures to automatically update with the new graphic image, remember to use the same file type as originally uploaded: .png, .jpg, .jpeg, .gif.
If you are paying for the Mirosign team generator and the same file type is uploaded then all staff’s email signatures will automatically update without having to reinstall!
Unfortunately if you change the banner link then staff will have to reinstall their email signatures.