What’s up everyone, this is part 2 of our two part episode on email deliverability and getting into the primary tab in Gmail.If you haven’t yet, start with last week’s episode where we covered 2 crucial classification factors according to Google. The content in your email and how users interact with your emails. Here’s today’s main takeaway: Most email marketers understand that email domain and IP reputation play a critical role in your ability to land in the inbox. But most email marketers will admit they are easily spooked by all the accompanying fancy authentication acronyms. SPF, DKIM, DMARC, they just mean allowing Gmail and other email clients to verify you as the sender. We’ll break those and many more email deliverability tips right now.Today’s episode will cover things you can do that would help with other email clients, not just Gmail. We’ll cover sender reputation, authentication as well as tactics in your automation tool to improve deliverability. 3. Sender repWe know for sure that factors that influence the spam folder are also factors in the inbox vs promos tab, that’s who the email is from. There’s an IP behind the sender, but there’s a domain behind the IP.Domain reputation vs sender ip reputation. There’s two main types of email reputation that can affect your sending: 1) IP Reputation and 2) Domain Reputation. Both reputation scores are calculated separately but as you’ll see as we unpack things, both scores are closely related as your sending ip is mapped to your domain.Mailgun has a dope article on this https://www.mailgun.com/blog/domain-ip-reputation-gmail-care-more-about/ Mailgun claims that things like domain age, how the domain identifies across the web and whether it identifies with entertainment, advertising or finance industries can all impact your domain reputation. They believe domain reputation ultimately matters more to Google.Other suspected factors by rejoiner.comDomain reputation / Past behavior of the senderIf you’ve been sending heaving promo/spam offers through email to hundreds of thousands of people for x years, you’re bound to have a mountain of recipients that marked you as spam. So just because a subscriber is new, it doesn’t mean you start fresh. A lot of senders actually have a ton of baggage from previous sends. Google is quite clear about this: When messages from your domain are reported as spam, future messages are more likely to be delivered to the spam folder. Over time, many spam reports can lower your domain’s reputation.Gmail best practicesGoogle provides a list of best practices for sending to gmail users, it’s not overly helpful but it has some valuable tips. Aside from the obvious, don’t impersonate another company, don’t test phishing scams and make sure your domain is marked as safe, here’s 3 things Google recommends:
Authentication: Allow Gmail to verify the sender by setting up reverse DNS (domain name). This means pointing your email sending IP addresses to your company domain. 
Small number of sending IPs: Google recommends you stick to just 1 sending IP. They add that if you must send from multiple IPs, use different IP addresses for different types of messages. Ie; one IP for blog, subscriber emails, one for important product updates, one for upsell and promo. 
I often hear email marketers say that if you are getting stuck in the promo tab, just start a fresh new sending IP. The problem there is that this is a short term benefit. If you don’t make changes to your domain, that new IP is still authenticated to the same source with the same baggage. 
I have heard anecdotely that using separate sending IPs for customers vs leads greatly helps. But I know companies that don’t use this well and still have solid metrics. 


Different senders: Along the same lines, Google encourages you to use a different ‘from sender’s for different types of emails and that you don't mix different types of content in the same emails. Ie, your purchase confirmation/new customer onboarding