Accessing private communications is not a way to protect a relationship it is a way too destroy it. The instinct is human, but it is ultimately harmful to a relationship to need to monitor communications.
From my side of the fence..
I don't care about her doing her job. I've been with her for 1.5 years now, and support her job.
If her job was an issue to me, we wouldn't be together 1.5 years later.
And I'm not interested in reading her mail either.
It's been 1.5 years now, I trust her.
However, I have access to everything..
So 10x a day when she asks for help with things, I can access and help her.
Shes provided access, cause she doesn't care about the topic.