Hi All,
I changed the Encryption Algorithm settings to AES256 for outgoing messages in my Outlook 2016.
I did it via:
Outlook Options - Trust Center - Trust Center Settings - Email Security - Encrypted emails (Settings) - Encryption Algorithm AES (256 bit)
Now when I send an email "internally" that is from my corporate email account to another colleague of mine in the same company, the email gets delivered with an encryption algo as AES256.
I checked on my colleague's Outlook 2016, where email was received by clicking the “lock” sign – displayed on the top right corner and then read the description of “Encryption Layer”. It said Encryption algo used as AES256. All good.
But when I encrypt an email and send it to some "external" email account, the recipient sees the encryption algo used as 3DES. Why is that the case? Does it have anything to do with the recipient's public certificate? We use O365 - Outlook 2016 within our company.
Any help shall be appreciated.
Thanks.
