I'm trying to create a credential harvesting campaign but it doesn't let me to se select users with personal gmail accounts.
I've tried sending the same campaing to personal outlook/hotmail accounts and there's been no problem.
Is there a reason why this is happening?
Do you have access to a g-Suite? Or is this there personal emails created free on gmail. I do not think they will go through unless you whitelist the domains, which you cannot do unless you are using something like Gmail. As far as I know or would assume Phish Threat is intended for IT with admin access to the email servers, unless Sophos worked out some deal with gmail.
As Badrobot said, you must add the Gmail's servers IP addresses to the allow list. That IPs are:
Here you can find the complete info: https://support.sophos.com/support/s/article/KB-000037983?language=en_US
Regards from Mexico!