This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
I am attempting to use Outlook on my android phone. When I attempt to add my email account to outlook (on my phone) I get an error that says: Your mail certificate is invalid. Would you like to login anyway. PLEASE HELP!!!!
Using Outlook for Android in business environments for email and scheduling
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Using a Godaddy certificate. 20 phones.....same problem. Outlook version 2.74.0 on iphone. Can not find a newer version in the app store.
Microsoft.......PLEASE FIX!
Unfortunately, still not working for us.
Working again on both IPad and IPhone, hope everyone else gets it sorted.
I have the latest app on iOS and it is still not working. Thinking this is not just an app thing?? Yesterday my app worked all morning. Tried it in the afternoon and it started with the invalid cert message. It is like that with all my coworkers with both iOS and Android apps (latest). What would change in the middle of the day. All my certs are current. Like others, OWA and the native mail apps on both iOS and Android work with no problems.
Suddenly having problems again, not able to log-in once more, did not last.