TLS Certificate problem?

Posted on 2011-10-21
Last Modified: 2012-06-22
One of my customers has had an SBS 2003 server running for a few years with no real problems, in the UK recently BT (their broadband provider and domain host) had a major outage (i think due to spamming) since then the emails from major customers (centrica, John Lewis etc) have not been getting through, the bounce back with the error TLS connect failed; connected to (the customers server IP address). Smaller companies emails still get through. BT say that changes made to their system will mean that my customers server now need to use a certificate. What is the best proceedure for this? do we need a certificate generated by a Certificate provider or can we generate one ourselves? What is the correct procceedure for installing the certificate on a Windows SBS 2003 Server? Thanks
Question by:Insideview
    LVL 12

    Expert Comment

    You will need to run the Configure Email and Internet Connection Wizard from Server Management > Internet and Email > Connect to the Internet.

    During the wizard process it will allow you to make and install a self-signed certificate that will do the job.

    Author Comment

    Hi, unfortunately I have already tried that and it made no difference
    Thanks anyway
    LVL 2

    Expert Comment

    Run email test at to see if TLS is working and if you have the cert installed correctly.

    If so, post the complete bounce message that a customer receives and maybe we can see something.

    Accepted Solution

    Thanks for your help but I found out that I needed to remove the old certificate and then create a new on, all working correctly now

    Author Closing Comment

    Found the answer myself

    Featured Post

    Integrate social media with email signatures

    Is your company active on social media? Do you also use email signatures? Including social media icons in your email signature is a great way to get fans for free. Let all your email users know you’re on social media quickly and easily, in a single click.

    Join & Write a Comment

    Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
    Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
    To show how to generate a certificate request 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 Servers >> Certificates…
    In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…

    745 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

    15 Experts available now in Live!

    Get 1:1 Help Now