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Browse our extensive list of email deliverability optimization services to find what you need to increase open rates.

1.Authentication protocol setup
Email service providers try to authenticate your email when it arrives to verify that it came from a legitimate domain. Codeandcore configures your email IP address and domain to pass through these authentication processes. We will help you meet SPF, DKIM, and DMARC protocols to guarantee easy validation from email providers.
2.IP reputation and domain management
Your IP and domain reputations are critical in determining where your sent emails land on a recipient's account. IPs and domains with a history of sending spam or malicious emails will always find their emails blocked or sent to spam folders. Codeandcore helps you evaluate your IP and domain using tools like Google Postmaster and Microsoft SNDS. Suppose your IP or domain has been blacklisted. In that case, we will resolve the issue with blacklist providers and set up preventive measures to ensure your emails always find their way to your recipient's inbox.
3.Email content optimization
Your content quality directly impacts your email's placement and open rates. Codeandcore helps you audit and optimize your emails to meet email providers' guidelines. We will remove spammy words, align your subject line-to-content connection, and optimize the layout and design. We can also conduct A/B testing to get the version of your message that resonates best with your audience.
4.List hygiene and bounce management
Your open rates affect your domain reputation. Codeandcore helps you sanitize your email list to remove inactive, invalid, and risky email addresses. Our experts implement double opt-in and email verification to certify that your recipients genuinely want to read from you. We also monitor your sent email engagements to segment your list from hot to cold engagement, enabling you to reduce bounce rates and increase open rates.
5.Spam-compliant monitoring and feedback loops
Not monitoring your spam complaints tells Email service providers and Internet Service Providers to block or blacklist your domain. Codeandcore helps you monitor your recipient's response to your email by setting up a feedback loop (FBL) that notifies you when they mark your email as spam. We will help you analyze their complaint pattern to determine the issues and recommend adjustments to improve the complaints and open rates.
6.Deliverability testing and monitoring
Ensure that your emails arrive in your recipients' inboxes with our deliverability testing service. We use tools like Litmus and Return Path to run pre-send deliverability tests to see where your emails end. Our experts actively monitor the process to identify and address potential issues to achieve the highest delivery rate.
Explore what we have done.
See why hundreds of clients come to Codeandcore for their email deliverability and optimization needs!
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Do you have further questions and concerns you would like us to address? That’s great! Please click on the link below to get started. Our experts are eagerly waiting!
How do SPF, DMARC, and DKIM affect email deliverability? 
How frequently should I clean my email list? 
We recommend that you clean your email list every 3-6 months. This will ensure you remove every inactive, risky, and invalid address before your reputation is damaged.
What causes emails to end up in the spam folder? 
Multiple factors cause sent emails to hit the spam folder instead of the recipient’s inbox, from spammy content to invalid authentication and poor IP reputation.
Can you recover an IP address from a blacklist? 
Yes, we can. We will work with the blacklist provider to determine what led to it being blacklisted. Our experts will then address the issue of removing your IP from the blocklist and restoring its reputation. We can also help you get dedicated IP addresses to give you complete control over your IP address.
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