Your contact list loses 2 to 3% a month
Reach the person who still owns the problem. See how stale contacts spend your sending capacity, and how to keep your list useful.
Your list has a use-by date
Business contact data changes at about 2 to 3% a month. Over a year, a quarter to a third of a file can need attention. People move, roles change and mailboxes close. A list that was useful when you bought it still needs checking when you use it.
In our own campaigns, 5 of 22 replies came from people who had left the company. The list had been verified about three weeks earlier and the addresses still accepted mail. The lesson was practical: check that the person still owns the role as well as whether the mailbox accepts an email.
Four ways a contact goes stale
Four changes can leave a contact record pointing at the wrong person:
- The person leaves and their old contact details stop reaching them.
- They move into another role and the problem now belongs to a colleague.
- The company is acquired and the old domain still accepts mail.
- A retired mailbox forwards to a colleague for ninety days.
Forwarding makes stale data easy to miss. An email can be delivered successfully to someone who has inherited a mailbox and has little connection to your offer. Check the buyer's role while you research the company, so a successful send has a useful destination.
Where the wasted work shows up
An outdated list costs you attention before the conversation even starts. Check who owns the role now, keep the source of the contact details and refresh the list before your next campaign.
Stale data also spends research time. Reading the company and crafting the approach takes work whether the buyer is still there or has moved on. A quick identity check helps that effort reach the person it was intended for.
Five of twenty-two replies looked like new activity until we read that the person had left. Those answers still contain useful information, but they need a different next action from an interested buyer. Classify them before counting the campaign's opportunities.
Keep the useful people in reach
Verify close to sending. We check contacts after campaign upload and before launch, then preserve the verdict. Use the date of the check to understand how fresh it is when the message goes out.
Keep both the record date and the verification date. Our earlier routine used a three-week freshness limit; the important habit is to look at the actual age before writing to the address.
Remove rejected addresses and keep unknown verdicts visible for review. Decide how to handle them using the campaign's verification and source-quality rules. That gives the team a clear record of what was accepted and why.
Use verification as a dated check. Keep the result with the contact so later stages can use it, and repeat the check when age or new evidence justifies it. That keeps both the decision and its basis visible.
A hand-check of fifty addresses gives you an early view of a new source. Examine the company, role and email together. Keep watching the source as volume grows: the next fifty thousand still need the same care around verification and sending.
Look closely at the changing roles
A broad decay rate can hide very different patterns within a list. Commercial roles and small-company records deserve a close look. A ten-person business can change its domain and lose two of four decision makers inside a year, while an export continues to show the old picture.
Use a six-month-old export as the start of the research. Check the company, then the current person and role, before writing an opening that depends on either. That lets you keep working a useful market with better information.
Use the correction when it comes
Read a leaver's reply for a successor or another useful contact. A two-line response asking who now owns the area can help, where appropriate. Record the correction, suppress the old address and check the new person's role before starting a fresh approach.
A correction from the company is useful input for the next research pass. Keep it beside the original record so the same mistake doesn't return in a later list.
Put the arithmetic against your list
For an illustrative thousand-contact list built in January, plan for forty to sixty records to need attention by March and two hundred and fifty to three hundred by the following January. The point is to budget for refreshing the file as well as buying it.
Using a ceiling of 15 daily Google campaign emails and 3 on Microsoft, a hundred stale contacts in a three-email sequence waste 300 sends. That's a day's example capacity for twenty Google mailboxes. Check actual mailbox readiness and warmup before planning from those ceilings; every stale row still uses time you could spend reaching a current buyer.
Make freshness part of the record
Date the record and its checks, review anything older than three weeks, and inspect a new source on a hand-checked fifty. Keep the verdict and the corrections together. Then the next person building a campaign can see how fresh the contact is before they use it.