How to Re-Permission an Old Contact List the Right Way

You have 400 contacts in a spreadsheet from five years of real estate. Some are past clients. Some are leads who never closed. Some are people from a networking event you attended in 2021. You haven’t emailed any of them in over a year.

This is one of the most common situations agents face when they decide to start a newsletter. And the worst thing you can do is import that list and hit send.

Here’s why, and what to do instead.

Why You Can’t Just Import an Old List

When you email people who don’t recognize your name or don’t remember opting in, a percentage of them click the spam button. Even a handful of spam complaints relative to your list size can damage your sender reputation with Gmail and other inbox providers — making it harder for your emails to reach even the people who do want them.

Old lists also contain dead addresses. People change jobs, abandon Gmail accounts, and move. A hard bounce rate above roughly 2% is a red flag for email platforms and can result in your account being flagged or paused.

On the legal side: CAN-SPAM (US) and CASL (Canada) both have provisions around consent. CASL in particular has specific requirements about the currency of express consent — a contact who gave you their card at an event three years ago and never heard from you since is legally ambiguous at best.

The right move is a re-permission campaign. It takes one email and a few hours of list management. The list that comes out the other side will be smaller, cleaner, and genuinely more valuable.

The Re-Permission Email: What to Write

The re-permission email has one job: give people an easy way to say yes. It doesn’t need to be complicated.

Here’s a structure that works:

Subject line: “Quick question before I add you to my list”

Body:

Hi [First Name],

I’m [Your Name], a real estate agent in [City/Area]. We connected a while back — [brief one-line context: “you came to one of my open houses,” “we worked together a few years ago,” or simply “through [event/referral]”].

I’ve been putting together a monthly email with local market updates and homeowner tips for the [area] market. I’d love to include you, but I wanted to ask first.

If you’d like to stay in the loop, just click the button below to confirm.

[CONFIRM YES, ADD ME]

If you’d rather not, no problem at all — I won’t add you. Either way, thanks for your time.

[Your Name]

Simple. Honest. Gives them full control. That last part matters — people respond well to knowing they can say no without consequence.

Setting Up the Campaign Mechanically

Before you send:

1. Segment your old list by how you got the contact. Past clients get a slightly warmer version (“we worked together in [year]”). Cold leads or networking contacts get a more neutral version.
2. Import the list into your email tool as a separate segment, not your main list. This keeps any bounces or complaints isolated.
3. Set a deadline for yourself — you’ll suppress non-responders after 7 days. Don’t extend it. People who are going to click will do so quickly.

After sending:

• Export the confirmed opt-ins and add them to your main list
• Suppress everyone else — in your email tool, mark them as “do not email” or “cleaned”
• Note the suppression date in case anyone ever asks

If you’re unsure which email tool handles this most cleanly, best real estate email marketing tools covers which platforms have solid suppression management.

What to Expect

Response rates on re-permission emails are typically modest. On a cold list that’s been dormant for years, a confirmation rate somewhere in the range of 10–30% is realistic. That means if you start with 400 contacts, you might end up with 40–120 confirmed subscribers.

This will feel discouraging. It shouldn’t.

The 40–120 people who confirmed are the ones who recognized your name, saw value in what you’re offering, and took 10 seconds to click a button. That list will have substantially better open rates, fewer complaints, and a higher referral potential than the original 400 ever would have.

The 280+ who didn’t confirm were never going to be engaged subscribers. Trying to turn them into ones through repeated emails would have damaged your sender reputation and wasted your time.

After the Campaign: Building on a Clean Foundation

Once your re-permission campaign is done, you have something more valuable than a large list: a verified list of people who want to hear from you.

From here, list growth is straightforward — open houses, community events, your website, your sphere. Every new contact you add has been opted in properly, which means your deliverability baseline stays healthy.

For the mechanics of keeping past clients engaged once they’re confirmed subscribers, how to stay in touch with past clients after closing covers the longer-term relationship rhythm. And for a full view of email marketing best practices for agents, the real estate email marketing guide is the place to start.

The short version: a smaller clean list beats a large dirty one every time. Run the campaign once, do it right, and build from there.