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Aastha Shaw / November 10, 2020 March 14, 2025

Catch-all Emails And It's Impact On Email Deliverability


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Precision and effectiveness are crucial components in the world of email marketing.

Crafting the perfect email marketing campaign involves meticulous planning and execution to ensure your message reaches your target audience.

However, there are certain types of risky email addresses that look valid but can impact your email deliverability and deteriorate your campaign performance. One example of this is catch-all email or accept-all email type.

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Such emails are trickier to deal with, and there is often confusion about what they are exactly and whether to include them in outreach campaigns.

So, in this blog, we have covered everything about catch-all emails, including the threats related to them, and how to verify and avoid email catch-alls.

Table of Contents:


● What is a Catch-all Email?
○ Example of a Catch-all Email
● Why do Catch-all Emails Exist?
● Are Catch-all Emails and Aliases Same?
● Catch-all Emails Impact on Email Deliverability
○ Advantages of sending emails to Catch-alls
○ Disadvantages of sending emails to Catch-alls
● How To Verify Catch-all Emails?
● Should I Send Out Emails To a Catch-all Domain?

What is a Catch-all Email?


A catch-all email, also known as an accept-all email or a default address, is a special email address account configured to accept all email messages sent to a specific domain, regardless of whether the recipient's email address actually exists on that domain.

Example of a Catch-all Email


Let's say a company, "ABC Corporation," has a domain name of "abccorp.com." They have set up a catch-all email address for their domain. This means that any email sent to any address ending in "@abccorp.com" will be directed to their catch-all email inbox.

If someone sends an email to "[email protected]," it will go to the catch-all inbox.

If another person sends an email to "[email protected]," it will also go to the catch-all inbox.

Even if someone sends an email to a non-existent address like "[email protected]," it will still be caught by the catch-all email inbox.

In this way, the catch-all email acts as a safety net, capturing all emails sent to the domain, whether or not a specific email address was created for that purpose.

Why do Catch-all Emails Exist?


Catch-all emails are often used for various purposes, including capturing misspelled or generic emails sent to a domain, managing email traffic, and reducing the risk of bouncing legitimate emails sent to non-existent addresses. Here are some reasons why Catch-all emails are created:

  • Convenience: Catch-all email addresses can be convenient for small businesses and organizations that don't have the time or resources to create and manage individual email addresses for all of their employees.
  • Backup: Catch-all email addresses can also be used as a backup for existing email addresses. For example, if an employee leaves your company, you can forward their email to the catch-all email address so that you don't miss any important emails.
  • Spam filtering: Catch-all email addresses can be used to filter spam and other unwanted emails. For example, you can create a rule that automatically deletes all emails sent to the catch-all email address from unknown senders.
  • Legal compliance: Some organizations are legally required to keep all emails that are sent to their domain, even if they are sent to non-existent email addresses. A catch-all email address can be used to ensure that all emails are received and stored.
However, they can also be a source of spam and make it challenging to maintain email security and deliverability, as they accept emails indiscriminately.

Are Catch-all Emails and Aliases Same?


Catch-all and aliases are often confused as one but they serve different purposes and are used in distinct ways.

Email aliases are alternative email addresses that forward incoming emails to a primary email account. Aliases are created for specific purposes, such as organizing incoming emails or masking a personal email address.

They are often set up individually by users or administrators and can be used to create unique email addresses for different purposes without needing separate mailboxes.

For example, if your primary email is "[email protected]," you could create aliases like "[email protected]" and "[email protected]" to forward emails to your primary inbox while maintaining separate identities for different types of communication.

Simply put, catch-all emails are a domain-level configuration that captures all emails sent to a domain, while email aliases are individual, purpose-specific addresses that forward messages to a primary email account.

Catch-all Emails Impact on Email Deliverability


Now that we know what catch-all emails are, let's move on to understanding how they can affect your email deliverability and other factors when included in your campaigns…

Deliverability is, without a doubt, one of the key indicators to take into account when putting together a mailing campaign.

And when you send emails to catch-all emails, it can have both positive and negative impacts on email deliverability, depending on how they are managed and utilized.

Advantages of sending emails to Catch-alls:


Capturing Missed Opportunities: They capture emails sent to non-standard or misspelled addresses. This ensures that you don't miss out on important communication or potential business opportunities due to minor typos or variations in recipient addresses.

Disadvantages of sending emails to Catch-alls:


Increased bounce rate: If you send emails to catch-all email addresses that do not exist, or that are no longer in use, those emails will bounce back. This can increase your bounce rate, which can damage your sender's reputation with email providers.

Increased spam complaints: These accounts are managed by multiple people, and if someone is unaware of why they are receiving your emails, they can mark you as spam.

Decreased engagement: Catch-email accounts receive a lot of emails, and your emails will have a lower chance of getting any engagement.

These will ultimately lead to a bad sender score and poor email deliverability. Thus it is important to verify all the emails in your list and manage email catch-alls properly before shooting out your email marketing campaigns.

How To Verify Catch-all Emails?


Identifying and verifying a catch-all email is no rocket science. All it takes is a good email verification tool that offers catch-all email verification.

Clearout Email Verifier goes a step further and provides advanced catch-all resolvers to give you accurate scoring and information on whether the email is valid, invalid, or a catch-all.

You get a safe-to-send score that helps you analyze the risks of sending emails to any email address.

how to validate catch-all emails

The best part is the tool offers easy bulk validation and even integrates seamlessly with most of the sales platforms so that you can verify your email lists without any fuss.


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User Picture
(Did you mean : )
Safe To Send
? Based on best practices followed in the industry, Safe To Send flag will provide one of the 4 values to know the deliveriablity chances
Yes - Valid mailbox addresses with guranteed deliveriablity of message thus help to keep sender reputation high %
No - Invalid mailbox addresses can be safely removed, try sending message will bounce and degrade the sender reputation
Risky - Contact these email addresses only when bounce rate is less than 5 % or when using own email sending service
Unknown - Due to unavoidable reasons the status of the email cannot be determined, so retry before using them
Status
? What does Status value means?
Valid - Secure, go ahead and send
Invalid - Don't send, drop these emails
Catch-all - Maybe, at your own risk
Unknown - Don't send, verify later an hour to know the status
Reason
Account
Domain
Disposable
Free Account
Role Account

Upon email verification, you will know how many emails in your lists are catch-alls and then decide on how you deal with them. Now the question remains…

Should I Send Out Emails To a Catch-all Domain?


The answer is you should!

Throwing away a good opportunity to engage with your customers is not a good idea. Instead, you can make a smart move to verify, identify, and segment the catch-alls into different campaigns.

Including a limited number of catch-all email domains will save you from getting a high bounce rate from a single email campaign and save your email deliverability score from going downhill.

When you segment your email lists properly and send out relevant content to catch-all email accounts, there will be a higher chance of getting better engagement.

Also, don’t forget to monitor how the campaigns are performing. If you get a hard bounce from a catch-all email or your emails are not being opened for a long time, it's better to remove them from your email lists.

Whether or not you decide to send emails to catch-all domains, you must swear by regular email list cleaning to identify catch-alls and remove all types of risky email addresses that can hurt your email deliverability.

Most importantly, pick a tool with high accuracy so that you can blindly trust the results and focus on optimizing your campaigns instead of worrying about the quality of your email lists.

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