Free deliverability setup checker
Checks your complete technical setup
Checks spam blacklists
100% free
High email deliverability doesn’t start with your subject line.
Instead, the foundation of getting your emails read is your technical setup.
The technical setup consists of your email authentication records and custom tracking domain.
We’ve created a tool that checks if your technical setup is in order. It’s fast, accurate, and as a bonus, it also checks if your domain is on an email blacklist.
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However, the domain is on a blacklist, which would need to be addressed.
If it’s not functioning properly, many of your emails will land in the spam folder.
To help you understand better what it is and what it does, here’s a short explanation of each element of your technical setup:
➡️ SPF: Sender Policy Framework is an email authentication protocol. You implement it through a DNS record in which you specify which servers can send email through your domain. If you use an email service provider, you’d typically include their server in your SPF record. Receiving email servers can check the SPF record to verify that incoming emails are sent from an authorized server. If an email indeed comes from an unauthorized server, the receiving server may mark the email as spam or reject it entirely, helping to prevent spoofing and phishing attacks.
➡️ DKIM: DomainKeys Identified Mail authenticates the content of your email. It allows the receiving server to check if an email has been tampered with during transit. If it has, the email will fail authentication, potentially resulting in the email server rejecting the email or sending it to the spam folder.
➡️ DMARC: Although receiving servers have their own policies on what to do with unauthorized emails, Domain-based Message Authentication, Reporting and Conformance allows you to set yours. Your DMARC policy comes into play when an email fails SPF or DKIM authentication. You can either reject the email altogether, send it to spam, or let it pass regularly.
➡️ MX records: MX records tell sending servers where to send email. More specifically, to what receiving email servers should they send the email? If you don’t have MX records set up for your domain, sending servers won’t know where to send your incoming email. In other words, you won’t be able to receive email.
➡️ Custom Tracking Domain: To track clicks, opens, and other engagement metrics, your email-sending tool adds a tracking domain to your emails. Unfortunately, many of their customers, including spammers, use this tracking domain, lowering your deliverability. By using a Custom Tracking Domain, you’ll have better inbox placement.
Can I use the deliverability checker on multiple domains?
You can use it as many times as you need.
What happens if my technical setup has issues?
Yes, you can use it on multiple domains.
Do you have generators for other email authentication protocols?
Your deliverability will tank. If your emails are not delivered properly, few people will read them. Your return on investment will suffer. Email outreach success starts with good deliverability.
How do I set up email authentication records like SPF, DKIM, and DMARC?
We have published guides to help you:
➡️ How to create an SPF record
➡️ How to set up DKIM for your domain
➡️ How to set up DMARC
How do I set up my domain’s MX records?
We’ve got you covered too. Here’s how to set up your MX records.
Frequently Asked Questions
lemlist is the only cold outreach tool that helps you reach inboxes and get replies.
With lemlist, you can:
→ Find buyer-ready prospects and their contact details from a database of 450 million leads directly on the platform.
→ Find your leads' valid email addresses directly within lemlist - no need for third-party tools.
→ Write cold emails and LinkedIn messages using AI, and personalize at scale by incorporating custom intro lines, images, dynamic landing pages, liquid syntax, and more.
→ Create multichannel campaigns with advanced conditions to engage leads on their preferred channel at the optimal time, resulting in higher conversions.
→ Avoid the risk of ending up in spam folders by using the most advanced warm-up and deliverability booster available on the market (for free).
37,000+ users from 100+ countries.
On average, 57,284 lemlist campaigns are sent monthly via lemlist, generating $118,641,000 in revenue for sales teams, agencies, and founders.
You can’t know until you verify the list of potential emails. For example, in lemlist’s Email finder and verifier, if an email comes back as deliverable, it’s likely the correct one.
It’s possible that your lead has a hard-to-guess email address. If that’s the case, use your lead’s LinkedIn profile URL in our free Email finder to see if it returns an email address.
Find leads with verified emails, write and personalize at scale,
& get customers with
