Verification code stripped out of emails

Good evening, we have some users in Australia who use a company called Telstra as their communication / internet provider. For some unusual reason when they send verification emails containing a code, it is stripped out completely from the body of the email. The actual email arrives but with nothing in the body. Is this something that anyone else has come across?

It appears that if the email goes to a Gmail address 'obviously not going through Mimecast' the code is visible. Using a Gmail account for dealing with this might be an option, but not ideal.

Any ideas very much appreciated.

Rob

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Dawn Cronin - Moderator

Rob:

Are these "verification codes" in response to Mimecast Device Enrollment requests, or are any 2FA codes generated by any application in general being stripped? In light of this recent report from Mimecast, Australian Government Impersonation Campaign. I think there may be current articles about this in Australian news outlets, too.

It sounds like this is not related but "rather be safe than sorry" in this case.

Thanks!

Dawn Cronin

Rob Webb

Thanks for your reply Dawn. Appreciate the info. So these 2FA codes are being sent via a third party to our main company domain. They are going through Mimecast and something 'presumably within Mimecast' is stripping the content out. We receive email, but where the 2FA code should be displayed is empty space. The codes have been sent to a Gmail account where they come through correctly. I haven't come across this before and unfortunately the third party company don't provide another way to send these codes!

Kind regards,

Rob