Warming up domains/mailboxes for Beehiiv
I have a list of about 6,000 engaged subscribers from my Substack newsletter. I'm counting anyone with "Activity Level 1" or above as an engaged subscriber and won't be reaching out to the people who aren't on this list.
I've just purchased a couple domains/mailboxes to connect to Beehiiv so I can send email blasts to this engaged list about offers and free webinars I'm hosting.
I'm wondering what type of warmup is needed for this activity. I come from a cold automated outbound school but I understand this is somewhat different.
My plan was to start by only reaching out to Activity Level 5 (the most engaged subscribers) the first week and send no more than 25 messages or so per day the first week, and to not include any links or pictures in the blast. And then gradually increase the sending volume and start including Activity Level 4, and so on over a few weeks.
How does this plan sound? Thanks for your help.