Currently I use a Mailchimp form to collect the address, but since I am not that big of a fan of big companies like Mailchimp, what I actually do is just save the info to my computer.
When it is time to send out an email I copy the address into my mailprogram and send out a regular email.
You can also unsubscribe at any point, instructions are in the bottom of every email.
So no tracking, no selling data to ai, no bullshit, just a regular email written by me :)
Feel free to say hi while you are there.
See you in the inbox!