[username223]

I don't care that much about "optimal (or cordial)," and I'm not all that mad. Distrusting "duck"/"Kale Davis" is probably a good idea, but you're of course free to do what you want.

[woebtz]

Is using Mailchimp (or related services) the issue or link tracking in general?

[duck]

33k people trust me with their email address, but you can do whatever you like username223.