Galaxy S3/Android: "Unable to verify signed message" and inability to reply.

Posted on 2012-08-31
Last Modified: 2012-09-14
I have my Exchange account set up on my Galaxy S III. The phone is great, but I'm coming from several years of iPhones, so it's taking me a little while to get used to it.

I received an email from a person today. In the message list, there is a little gold and red icon (that looks like of like a seal or medal). I can open and read the email fine. At the very bottom of the message, there is a button labelled "Verify Signature." When I click it, I get an error message that says, "Unable to verify signed message. Certificate not installed."

Furthermore, if I attempt to reply to the email, I get two messages that flash up (briefly) at the bottom of the screen:

1. "Unable to sign or encrypt message. Certificate not installed."
2. "Quoted text not available. Replying to unicoded S/MIME message."

I can type a reply, and I can save it as a draft, but if I attempt to actually send the message, I get that first "Unable to sign or encrypt message" error again.

I can reply to his email fine through Outlook or OS X Mail. Is there no way for me to reply to these types of messages on my phone, though? Thanks.
Question by:elorc
    1 Comment
    LVL 15

    Accepted Solution


    it means that user who sends you message signet or encrpyted it with DigitalCertifiacate.

    And it say you IT cant werified sender becouse you dont have instaled CA Certificated and User is not using Certificate send by Default Trusted authority.

    If the sender is from your company donwload your CA certificate. It is downlaod able for example on https://CASERVER_DNS_NAME/certsrv

    HOW to instal

    if you dont e-mail with that person offen and you can ignore it :)

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Course: Create Mobile App Prototypes with Adobe XD

    This is a project-based course: we go through all the steps of creating a prototype from start to finish, using all the tools and features currently available in Adobe XD. You can complete the course in less than a day, plus all project files and fonts are included.

    Learn more about how the humble email signature can be used as more than just an electronic business card. When used correctly, a signature can easily be tailored for different purposes by different departments within an organization.
    Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
    In this video we show how to create an Accepted Domain in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Ac…
    This video is in connection to the article "The case of a missing mobile phone (". It will help one to understand clearly the steps to track a lost android phone.

    761 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    8 Experts available now in Live!

    Get 1:1 Help Now