Outlook 2016 Can't display some embedded HTML images in Outlook 2016

JackPollack

Senior Member
Outlook version
Email Account
Exchange Server
Using Windows 7 with Outlook 2016 (please, no coments about Win7).

Some HTML emails with external embedded pictures are not showing the pictures. When I read those messages they cause a schannel error 36887 (error 40 & 70) in the event log.

If I'm not mistaken HTML messages get rendered in Outlook using Internet Explorer.

I can certainly replocate the errors in Internet Explorer by trying to open the url to the embedded picture directly in IE
This link in IE https://www.askwoody.com/wp-content/uploads/2021/02/nl-fastie-so.png for example gives the following error
"This page can’t be displayed
Turn on SSL 3.0, TLS 1.0, TLS 1.1 and TLS 1.2 in Advanced settings"

it also logs the same errors in the event log as opening the email with links to it in Outlook.


I Think I have the latest Win7 update that added TLS etc. (I'm no sure what KB it was). My IE options/advanced have SSL2, SSL3, TLS1, TLS1.1, TLS1.2 (SSL2, SSL3 are unchecked). I have tried turning on/off different combinations of these protocols but still can't connect to the example site above.

My default browser for web browsing is FireFox, but as I said earlier I think that OL still uses IE to render HTML

I'm not sure why IE cant make a secure connection. Could it be a SSL cert issue?
Any way to update the IE certs if needed?
Any way to fix this at an OS level or to have Outlook use a different HTML rendering engine?

I dont not have Edge installed. My default browser is FireFox

Thanks in advance
 

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange

JackPollack

Senior Member
Outlook version
Email Account
Exchange Server
Thanks for your suggestion. unfortunately that update is already installed.
 
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