Case Study - The Impact of Regular Email List Cleaning
Posted: Sat Dec 28, 2024 8:34 am
So here’s a real-life case study by Rob Cairns, a Digital Marketer, using a recent client case as an example.
They had an email list of 2,300 addresses that hadn’t been used in nearly two years.
When they tried to send emails, they faced high bounce rates, which led to deliverability issues, and their email service provider temporarily blocked the list.
To fix this, Rob ran the list through a cleaning service, which reduced it to just under 1,000 valid contacts. After cleaning, they achieved an impressive 49% open rate on their first email campaign.
Quite impressive huh?
Rob emphasizes that outdated email addresses can harm deliverability, lead to spam placement, and waste resources. Whereas regular list cleaning takes care of all these issues, making email campaigns more effective.
Validate your email lists now with 99% Accuracy. Try Clearout For Free!
Factors Influencing How Often to Verify Email List
The truth is, that it varies depending on the type of list and how you use it. Here are 6 common factors that can help you decide how often your email lists should be cleaned.
1. How was Your Email Address Collected?
Think back to how you got those email addresses. Did people sign up on your website? Did you grab them at an event? Or did you just buy the list?
If users have signed up willingly, there’s no need to worry much. However, if the data was obtained without their consent, there’s a higher chance of manual errors and fake or outdated entries slipping in. And this means you are already in some trouble.
How Often To Verify Email Lists - (Best Practices + Case Study)
In either case, verifying 72 hours before sending the first campaign will usage of this application work best as this will weed out any invalid or fake addresses. And then you can reduce it to every 1-3 months .
Our advice?
If you allow form entries, use real-time validation to catch typos like “yahooo.com” or “gmial.com” as they happen to stop spammers.
Don't buy an email list. If you are collecting emails from different platforms for cold outreach, verify them before adding to the email list.
2. Did You Use Double Opt-In?
A double opt-in is like having a bouncer at the door of your email list—it makes sure only interested subscribers get in, by sending a confirmation link to the email. This step helps ensure the email is active and intentionally shared. For example:
Single Opt-In: A bot or someone entering “[email protected]” during sign-up won’t get caught without double opt-in.
Double Opt-In: The user receives a confirmation email; if the address is invalid, it never gets added to your list.
If you’ve been using double opt-in, great! Your list is cleaner from the get-go. But if you’ve skipped this step, things can get messy. Typos, bots, or disinterested people might sneak in.
They had an email list of 2,300 addresses that hadn’t been used in nearly two years.
When they tried to send emails, they faced high bounce rates, which led to deliverability issues, and their email service provider temporarily blocked the list.
To fix this, Rob ran the list through a cleaning service, which reduced it to just under 1,000 valid contacts. After cleaning, they achieved an impressive 49% open rate on their first email campaign.
Quite impressive huh?
Rob emphasizes that outdated email addresses can harm deliverability, lead to spam placement, and waste resources. Whereas regular list cleaning takes care of all these issues, making email campaigns more effective.
Validate your email lists now with 99% Accuracy. Try Clearout For Free!
Factors Influencing How Often to Verify Email List
The truth is, that it varies depending on the type of list and how you use it. Here are 6 common factors that can help you decide how often your email lists should be cleaned.
1. How was Your Email Address Collected?
Think back to how you got those email addresses. Did people sign up on your website? Did you grab them at an event? Or did you just buy the list?
If users have signed up willingly, there’s no need to worry much. However, if the data was obtained without their consent, there’s a higher chance of manual errors and fake or outdated entries slipping in. And this means you are already in some trouble.
How Often To Verify Email Lists - (Best Practices + Case Study)
In either case, verifying 72 hours before sending the first campaign will usage of this application work best as this will weed out any invalid or fake addresses. And then you can reduce it to every 1-3 months .
Our advice?
If you allow form entries, use real-time validation to catch typos like “yahooo.com” or “gmial.com” as they happen to stop spammers.
Don't buy an email list. If you are collecting emails from different platforms for cold outreach, verify them before adding to the email list.
2. Did You Use Double Opt-In?
A double opt-in is like having a bouncer at the door of your email list—it makes sure only interested subscribers get in, by sending a confirmation link to the email. This step helps ensure the email is active and intentionally shared. For example:
Single Opt-In: A bot or someone entering “[email protected]” during sign-up won’t get caught without double opt-in.
Double Opt-In: The user receives a confirmation email; if the address is invalid, it never gets added to your list.
If you’ve been using double opt-in, great! Your list is cleaner from the get-go. But if you’ve skipped this step, things can get messy. Typos, bots, or disinterested people might sneak in.