You should be aware of Certificate Transparency if you go down this route.
While I agree that it probably shouldn't matter it could help an attacker gather knowledge about your internal network. Perhaps it's of interest that you use a specific monitoring tool or mail server internally - that could make phishing emails easier to craft.
While I agree that it probably shouldn't matter it could help an attacker gather knowledge about your internal network. Perhaps it's of interest that you use a specific monitoring tool or mail server internally - that could make phishing emails easier to craft.