I have to follow Comparitech's SSL Decryption Guide: How to Decrypt SSL with Wireshark.  But it is not working for Outlook - Office 365 mail traffic.  I'm seeing traffic on port 443 only and it's SSL-encrypted.

What do I need to do to fix this?

1 Answer 1


Unfortunately the TLS keylog export trick only works for applications that respects the SSLKEYLOGFILE setting, such as Firefox and Chrome. If you need to inspect SSL/TLS traffic from other applications then you need to use a TLS proxy.

Our PolarProxy tool is a transparent proxy, which can be configured to intercept, decrypt and re-encrypt all port 443 TLS traffic. It will also generate a PCAP file containing the decrypted traffic, which you can open in Wireshark. I hope this helps!

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