Email Deliverability
Get your emails where they need to go.
Boost your email deliverability for better customer engagement.

Constant Contact averages a 97% email deliverability rate.
Source: Constant Contact
Easy To Use
The keys to email deliverability are simple.
Keep a clean list.
Remove invalid email addresses, especially if a message bounces.
Keep emails relevant.
Send emails and write content your customers want to receive and read.
Use our tools correctly.
Get the most out of our products and tools by using them as directed.
Don’t send spam.
Keep your subject lines honest and stay away from spam trigger words.

Overview
What is email deliverability?
Email deliverability is the ability to deliver emails to a subscriber’s inbox. At Constant Contact, we work hard to ensure strong email deliverability for our customers—following industry best practices to help you stay compliant with current CAN-SPAM and CASL legislation. It’s how we maintain a 97% deliverability rate.
What We Do
We understand the importance of email deliverability. And how to improve it.
We monitor new contact signups, list uploads, content, and more, looking for evidence of suspicious activity. It keeps our network clean and your emails out of the spam filter.
We’re registered with all major Internet Service Providers (ISPs). By providing ISPs with our mail-sending IP ranges, we receive reports from feedback loops and whitelists.
Constant Contact automatically authenticates mail for all customers with DKIM, SPF, and SenderID, while also supporting your ability to set up D-MARC authentication if needed.
Any time a Constant Contact IP address is listed, our deliverability team works quickly to de-list the IP, determine the cause, and solve the problem.
Constant Contact is proud to be a leader in online marketing—working to create best practices and develop new technology standards for the entire industry.
Our experienced compliance and account review teams are always looking out for fraudulent activity, compromised accounts, and spam-related abuse.

Resource Center
Resources to help you do business.

5 tips to increase your email deliverability
You put a lot of work into creating your email campaigns each month. The last thing you want...

Common phrases that trigger spam filters
If you’re worried that your emails are being marked as spam, you can run a spam check...

How to reduce spam reports
The best way to prevent contacts from reporting your campaigns as spam is to...
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