As a real estate agent, email is one of your most consistent ways to stay in front of prospective clients. Market updates, property alerts, follow-ups after a showing. It's a channel that lets you stay top of mind without picking up the phone every time, and it's often the first place a lead re-engages when they're ready to act.
But email in real estate isn't just about hitting send. Agents are subject to communication regulations like the CAN-SPAM Act, which requires things like honest subject lines, a working unsubscribe option, and accurate sender information on every commercial email you send. These aren't just legal boxes to check. They're also the same practices that protect something just as valuable: your ability to actually reach the inbox in the first place.
That's where deliverability comes in. It's the difference between an email that's simply sent and one that's actually seen, and it's shaped just as much by your everyday sending habits, like list quality, engagement, and timing, as it is by any technical setup behind the scenes.
Want to go deeper on this? We recently hosted a live webinar covering these exact practices in more detail, plus a Q&A with a deliverability specialist. Watch the recording.
Delivery happens when a mailbox provider (Gmail, Yahoo, Outlook, and so on) accepts your email and doesn't bounce it. That's a pass or fail check based on things like authentication and whether your sending domain is on a blocklist.
Deliverability is what happens next: where that accepted email actually lands. Inbox, spam folder, or a quarantine you'll never see. Every mailbox provider is trying to do the same thing: get wanted mail to the inbox and unwanted mail to spam. How they decide which is which is closely guarded, but there are well-established best practices that improve your odds.
If a lead never sees your email, it doesn't matter how good your content is, how competitive your market report is, or how well-timed your follow-up was. A poor sender reputation doesn't just affect one email. It follows your domain and can quietly suppress everything you send going forward, including the automated touches leads are actually expecting.
Your list is the foundation of your reputation. The best practice here is simple: only send to people who've explicitly opted in to hear from you.
Purchased lists and forced registrations might look like a shortcut to more contacts, but they come with real risk. Mailbox providers plant what are called spam trap addresses, meaning email addresses that were never real people or have gone dormant for over a year, specifically to catch senders who aren't following best practices. Hit one of those, and it's a clear signal to providers that you're not sending responsibly.
A bigger list isn't automatically a better one. List quality beats list size every time.
A few habits that help:
Every open, click, reply, or “add to contacts” tells mailbox providers your mail is wanted. Every spam complaint, hard bounce, or stretch of silence tells them the opposite.
A few signals worth knowing:
Sending the same volume to everyone, regardless of whether they're opening your emails, is one of the fastest ways to damage your sender reputation. The best practice is a “sunset” approach: gradually reduce frequency for contacts who aren't engaging, rather than continuing to blast them at full volume.
A simple version of this framework:
As Microsoft's anti-spam team has put it, sending to recipients who haven't engaged in six months is one of the worst things you can do for your sending reputation. If you're planning to re-engage a cold list, send in smaller batches over time rather than one large blast.
A few content habits matter more than people expect:
Sending patterns matter too, especially during high-volume periods like the holidays, when inboxes are more crowded and spam filters get stricter. A couple of easy adjustments:
Before you hit send on your next campaign, run through this:
Deliverability isn't a one-time setup. It's an ongoing practice built on list quality, engagement, and sending habits that respect the inbox. Get those right, and the emails you're already sending will start working a lot harder for you.