Updated 2026
Today, I’m going to go over a few of the problematic email address types that can trigger a deliverability red flag or result in a Constant Contact account review.
In the interest of brevity, I’ll be discussing three specific types of addresses: Role, Anonymous Marketplace, and Distribution Group addresses.
About Role Addresses
True to their name, role addresses don’t belong to a single person. Instead, they belong to a specific role or department. Common examples include support@, legal@, or marketing@.
"So what’s wrong with those?" you may ask. The trouble is ownership. In 2026, many of these addresses are tied to shared team folders or Slack/Teams integrations.
The "New Person" Problem: If Evan leaves a company and Mary takes over the
support@inbox, she might not recognize your newsletters. To her, your mail is spam.The "Team Complaint" Problem: If Jack signs up using
sales@(which goes to 20 people), and just one person on that team marks it as spam, it counts as a complaint for the entire list.
Note: Constant Contact strictly blocks specific role prefixes that are known for high complaints, such as
abuse@,admin@,spam@, andsubscribe@. While we do mail to others likeinfo@, we highly recommend using a contact's direct, personal email instead.
About Anonymous Marketplace Addresses
You’ve likely seen these on sites like Craigslist or specialized B2B marketplaces. They look like a long string of random characters (e.g., [email protected]).
These are designed to be temporary "proxies" to protect a user's identity during a single transaction. They are not meant for ongoing marketing. If you find these in your list, it’s a sign that the contact likely didn't intend to join a long-term mailing list. Sending to these will almost certainly result in a "Non-existent" or "Undeliverable" bounce once the transaction window closes.
About Distribution Group Addresses
These are addresses for online groups or forums, with Google Groups being the most common example today. Just like role addresses, one email sent here goes to every member of the group. This is a fast-track to high spam complaints and can lead to your domain being blacklisted by Google.
What Happens If I Upload These Addresses?
To protect your sender reputation, our system automatically filters out known blocked prefixes and domains (like @googlegroups.com or @craigslist.org) during the import process.
If your list contains a high concentration of these addresses, it might trigger a pause for an Account Review. This isn't a "punishment"—it's our team making sure your list-building methods are set up for success before you hit "Send."
Editor's Note: This article has been updated to reflect the latest Constant Contact features.
