On which devices can I use OnMail? Jonathan September 08, 2021 18:40 Updated OnMail can be used with any desktop internet browser, or with our Android and iOS apps (our iOS app works on iPhone and iPad devices.) Related articles Is OnMail a standalone service or will I be able to plug-in multiple accounts? Connecting My Custom Domain to Edison Mail Can I sign up for firstname.lastname@example.org if johnsmith@onmail is taken? When can I get a free OnMail email account? Why did you name the email service OnMail? Comments 0 comments Article is closed for comments.