Forum Discussion

techweb's avatar
techweb
On our wavelength
2 years ago
Solved

Outlook SMTP SSL Error

I am using a very old e-mail client Outlook 2010 but until today have had no issues sending / receiving mail. However today I get this:

"0x800CCC1A " your server does not support the encryption type you have specified"

I wonder if some new requirements have been put in place for SSL encryption for SMTP.

  • Same issue with my up to date email client; "SSL/TLS handshake failed". Something has changed and/or broken but no idea what.

  • coenoby's avatar
    coenoby
    Very Insightful Person

    techweb wrote:

    I am using a very old e-mail client Outlook 2010  :

    "0x800CCC1A " your server does not support the encryption type you have specified"

    I wonder if some new requirements have been put in place for SSL encryption for SMTP.


    If you are using the correct port settings in Outlook then based on previous experience it's more likely to be a Microsoft issue.

    Here are the correct settings for all the VM domains:

    Incoming
    Account type IMAP
    Username richard.branson@virginmedia.com (your full email address)

    Server port 993
    Authentication Password
    SSL/TLS Yes
    Server host imap.virginmedia.com

    or:
    Account type POP3
    Username richard.branson@virginmedia.com (your full email address)

    Server port 995
    Authentication Password
    SSL/TLS Yes
    Server host pop3.virginmedia.com

    Outgoing
    Account type SMTP
    Username richard.branson@virginmedia.com (your full email address)

    Server port 465
    Authentication Password
    SSL/TLS Yes
    Server host smtp.virginmedia.com

    If your settings are correct here is a link to some suggestions for resolving the 0x800CCC1A  error

    https://www.msoutlookhelp.com/blog/outlook-error-0x800ccc1a/

    On the other hand, one recent poster https://community.virginmedia.com/t5/Email/0x800ccc1a-Microsoft-Outlook-2010  found they got that error with Outlook 2010 after they reactivated their computer from "sleep". However, they found that everything was ok if they used the "hibernate" option instead.

    Personally, my solution would be to stop using Outlook 2010 and use the free, open source email client Thunderbird instead 😉 https://www.thunderbird.net 

    Coenoby

  • Same issue with my up to date email client; "SSL/TLS handshake failed". Something has changed and/or broken but no idea what.

    • Vikki_M's avatar
      Vikki_M
      Forum Team

      Hi hippyclone

       

      Our teams were working through the night to complete planned and essential work to our email service. This was carried out overnight to minimise disruption for our email users, but unfortunately we have since encountered some technical difficulties this morning which means email users may be experiencing intermittent issues with their email service. We apologise for the inconvenience this is causing and our teams are working to resolve it as soon as possible.

       

      • hippyclone's avatar
        hippyclone
        Up to speed

        @Vikki_M : Thanks for the update. The issue is continuous rather than intermittent for me. I am wondering why, if this was planned work, notification of it arrived so late in the day but, most importantly, is there an ETA for when the issue is expected to be resolved?

         

  • The servers appear to be down at the moment, I personally wouldn't tinker with the settings just yet until things are fixed.  I sent an email and it reported as failed, but it went through - so it might be worth waiting if you can.

  • techweb's avatar
    techweb
    On our wavelength

    I am going to wait and see what happens when the issues are resolved. Hopefully the error Outlook throws is just a symptom of the wider problems.

    • Arissa_H's avatar
      Arissa_H
      Forum Team

      Hi Techweb 👋🏼.

      Thank you for posting. Welcoming you onto our community forum ☺.

      Our teams were working through the night to complete planned and essential work to our email service. This was carried out overnight to minimise disruption for our email users, but unfortunately we have since encountered some technical difficulties this evening which means email users may be experiencing intermittent issues with their email service. We apologise for the inconvenience this is causing and our teams are working to resolve it as soon as possible.

      Thank you. 

  • techweb's avatar
    techweb
    On our wavelength

    Well... seems that I am still having issues with SMTP on Outlook 2010. This was working fine earlier in the week so something is definitely awry. Will investigate more tomorrow

  • techweb's avatar
    techweb
    On our wavelength

    So... I resolved this by switching settings from SSL port 465 to using TLS port 587. Now I can send e-mails.

  • Hi techweb

    I'm getting exactly the same issue since Saturday with Outlook 2007. What was the reason you switched to using TLS port 587?

    Thanks,  Mike

    • GopherMK45's avatar
      GopherMK45
      Joining in

      Hi Mike,

      I had the same issue but with Outlook 16.  Have tried Techweb's solution and it fixed the problem

      In addition to changing the Port number you may/will need to change the outgoing emails encryption type to TLS

      Access thru Account Settings on the Outlook File tag. Had the problem on Outlook 16 where the change was much simpler than on my Outlook 10 which required several menu dropdown/items to be gone thru/opened. 

      Regards

      • techweb's avatar
        techweb
        On our wavelength

        Glad my solution helped you... I have just reverted back to SSL and port 465 and it works.

    • techweb's avatar
      techweb
      On our wavelength

      I just tried this as SSL wasn't working and it worked. Today I reverted the settings back to SSL and it works.

  • techweb's avatar
    techweb
    On our wavelength

    Sadly this same issue has arisen again this morning... Hopefully it clears in time. However, the previous workaround of switching from SSL 465 to TLS 587 doesn't work. All was working fine yesterday.

    • al67's avatar
      al67
      Superfast

      Similar issue (with a different mail client) started yesterday

       16/04/24, 10:06:15: SEND - sending mail message(s) - 1 message(s) in queue
      16/04/24, 10:06:15: SEND - Connecting to SMTP server smtp.virginmedia.com on port 465
      16/04/24, 10:06:15: SEND - Initiating TLS handshake
      !16/04/24, 10:06:15: SEND - Server reports TLS error: Handshake failure.

      Doesn't get far enough for the protocol log to record anything.:

      Haven't changed anything, been working for years. Will investigate more later and perhaps start a new thread as I suspect this is a change in server configuration rather than an individual client issue.

       

  • techweb's avatar
    techweb
    On our wavelength

    Yes, this is the error we are getting. To be honest i've hit it before and it got fixed / resolved after some time.