Improving Email Deliverability with Beehiiv: Tips and Insights

Hey everyone, quick question about email deliverability with beehiiv: I launched my newsletter just a few days ago, using a custom sending domain. Currently, I have only a few subscribers, and I’ve been testing the double opt-in (DOI) email process with several of my own email addresses. I’ve noticed the DOI emails sometimes take anywhere from 30 minutes to an hour to arrive, which is pretty concerning to me. Since I’m planning on acquiring subscribers through paid ads in the future, timely email delivery is crucial for maximizing conversion rates from opt-in to confirmed subscriber. Does your DOI email typically arrive immediately? Have you experienced similar delays initially, and does this improve over time once the sender domain builds up a reputation? Appreciate any insights or experiences you can share!