DMARC is now mandatory for bulk email senders. Don’t get blacklisted.
DMARC is mandatory. Avoid blacklists.
DMARC is now mandatory for bulk email senders. Don’t get blacklisted.
DMARC is now mandatory for bulk email senders. Don’t get blacklisted.
Free IP Checker
Ensure your IP is Not Blacklisted
Free IP Checker
Ensure your IP is Not Blacklisted
Free IP Checker
Ensure your IP is Not Blacklisted
Run a free IP reputation and blacklist check to see if your sending IP is trusted by email providers.
Get instant results, identify delivery risks, and fix email deliverability issues fast.
Enter any IP address to check its reputation and security status.
Fix deliverability. Block spoofing. Monitor everything.
Fix deliverability. Block spoofing. Monitor everything.
Fix deliverability. Block spoofing. Monitor everything.
Fix deliverability. Block spoofing. Monitor everything.
How IP Reputation Affects Email Delivery
How IP Reputation Affects Email Delivery
Understand DMARC Tags and Their Purpose
An IP address plays a critical role in how mailbox providers evaluate incoming email.
When an email is sent, providers assess the IP reputation, network history, and authentication results before deciding whether the message is delivered, filtered, or blocked.
IP reputation is evaluated independently from SPF, DKIM, and DMARC.
Your DMARC record is made up of several components that help protect your domain from unauthorized email use. Here's a breakdown of each part and what it does to ensure better email security.
What blocklists mean
Email blocklists are databases used by mailbox providers to identify IP addresses associated with spam, abuse, or suspicious activity. Why IPs get listed High spam complaint rates Large volumes of unsolicited email Abuse from shared or datacenter infrastructure Being listed on a blocklist can reduce delivery rates, even when authentication is correctly configured.
What blocklists mean
Email blocklists are databases used by mailbox providers to identify IP addresses associated with spam, abuse, or suspicious activity. Why IPs get listed High spam complaint rates Large volumes of unsolicited email Abuse from shared or datacenter infrastructure Being listed on a blocklist can reduce delivery rates, even when authentication is correctly configured.
What blocklists mean
Email blocklists are databases used by mailbox providers to identify IP addresses associated with spam, abuse, or suspicious activity. Why IPs get listed High spam complaint rates Large volumes of unsolicited email Abuse from shared or datacenter infrastructure Being listed on a blocklist can reduce delivery rates, even when authentication is correctly configured.
What blocklists mean
Email blocklists are databases used by mailbox providers to identify IP addresses associated with spam, abuse, or suspicious activity. Why IPs get listed High spam complaint rates Large volumes of unsolicited email Abuse from shared or datacenter infrastructure Being listed on a blocklist can reduce delivery rates, even when authentication is correctly configured.
Datacenter vs Residential IPs
Datacenter IPs are commonly used for servers and email infrastructure. Because they are often associated with bulk or automated sending, they are monitored more aggressively than residential IPs. Reputation can be influenced by other senders sharing the same network or ASN.
Datacenter vs Residential IPs
Datacenter IPs are commonly used for servers and email infrastructure. Because they are often associated with bulk or automated sending, they are monitored more aggressively than residential IPs. Reputation can be influenced by other senders sharing the same network or ASN.
Datacenter vs Residential IPs
Datacenter IPs are commonly used for servers and email infrastructure. Because they are often associated with bulk or automated sending, they are monitored more aggressively than residential IPs. Reputation can be influenced by other senders sharing the same network or ASN.
Datacenter vs Residential IPs
Datacenter IPs are commonly used for servers and email infrastructure. Because they are often associated with bulk or automated sending, they are monitored more aggressively than residential IPs. Reputation can be influenced by other senders sharing the same network or ASN.
Reverse DNS (PTR Record)
A reverse DNS (PTR) record links an IP address to a hostname. Mailbox providers expect a valid PTR record for legitimate mail servers. While a PTR record does not guarantee inbox placement, missing or incorrect reverse DNS can negatively affect delivery.
Reverse DNS (PTR Record)
A reverse DNS (PTR) record links an IP address to a hostname. Mailbox providers expect a valid PTR record for legitimate mail servers. While a PTR record does not guarantee inbox placement, missing or incorrect reverse DNS can negatively affect delivery.
Reverse DNS (PTR Record)
A reverse DNS (PTR) record links an IP address to a hostname. Mailbox providers expect a valid PTR record for legitimate mail servers. While a PTR record does not guarantee inbox placement, missing or incorrect reverse DNS can negatively affect delivery.
Reverse DNS (PTR Record)
A reverse DNS (PTR) record links an IP address to a hostname. Mailbox providers expect a valid PTR record for legitimate mail servers. While a PTR record does not guarantee inbox placement, missing or incorrect reverse DNS can negatively affect delivery.
How This Relates to SPF, DKIM, and DMARC
SPF, DKIM, and DMARC authenticate who is allowed to send email for a domain. IP reputation determines how much trust mailbox providers place in the sending source. For consistent inbox placement, both authentication and IP reputation must be healthy.
How This Relates to SPF, DKIM, and DMARC
SPF, DKIM, and DMARC authenticate who is allowed to send email for a domain. IP reputation determines how much trust mailbox providers place in the sending source. For consistent inbox placement, both authentication and IP reputation must be healthy.
How This Relates to SPF, DKIM, and DMARC
SPF, DKIM, and DMARC authenticate who is allowed to send email for a domain. IP reputation determines how much trust mailbox providers place in the sending source. For consistent inbox placement, both authentication and IP reputation must be healthy.
How This Relates to SPF, DKIM, and DMARC
SPF, DKIM, and DMARC authenticate who is allowed to send email for a domain. IP reputation determines how much trust mailbox providers place in the sending source. For consistent inbox placement, both authentication and IP reputation must be healthy.
FAQs
FAQs
Frequently Asked Questions
What is an IP reputation and why does it matter for email?
What is an IP reputation and why does it matter for email?
How do I check if my IP address is blacklisted?
How do I check if my IP address is blacklisted?
Can a blacklisted IP affect email delivery even with DMARC enabled?
Can a blacklisted IP affect email delivery even with DMARC enabled?
What causes an IP address to get a poor reputation?
What causes an IP address to get a poor reputation?
What should I do if my IP reputation is bad?
What should I do if my IP reputation is bad?
FAQs
FAQs
FAQs
Frequently Asked Questions
Frequently Asked Questions
What is an IP reputation and why does it matter for email?
What is an IP reputation and why does it matter for email?
What is an IP reputation and why does it matter for email?
How do I check if my IP address is blacklisted?
How do I check if my IP address is blacklisted?
How do I check if my IP address is blacklisted?
Can a blacklisted IP affect email delivery even with DMARC enabled?
Can a blacklisted IP affect email delivery even with DMARC enabled?
Can a blacklisted IP affect email delivery even with DMARC enabled?
What causes an IP address to get a poor reputation?
What causes an IP address to get a poor reputation?
What causes an IP address to get a poor reputation?
What should I do if my IP reputation is bad?
What should I do if my IP reputation is bad?
What should I do if my IP reputation is bad?
Tools
Tools
Tools
Tools
The Tools You Need for Safer Emails
The Tools You Need for
Safer Emails
The Tools You Need for Safer Emails
Check Your DKIM Setup
Verify your DKIM records to ensure email integrity and prevent tampering during transit.
Check Your DKIM Setup
Verify your DKIM records to ensure email integrity and prevent tampering during transit.
Check Your DKIM Setup
Verify your DKIM records to ensure email integrity and prevent tampering during transit.
Check Your DKIM Setup
Verify your DKIM records to ensure email integrity and prevent tampering during transit.
Validate Your SPF Records
Prevent unauthorized senders from using your domain and reduce email spoofing risks.
Validate Your SPF Records
Prevent unauthorized senders from using your domain and reduce email spoofing risks.
Validate Your SPF Records
Prevent unauthorized senders from using your domain and reduce email spoofing risks.
Validate Your SPF Records
Prevent unauthorized senders from using your domain and reduce email spoofing risks.
Secure Your Domain Free for 14 Days
100% DMARC, SPF, DKIM compliance
Improve deliverability, pass Google & Yahoo DMARC checks
Secure Your Domain Free for 14 Days
100% DMARC, SPF, DKIM compliance
Improve deliverability, pass Google & Yahoo DMARC checks
Secure Your Domain Free for 14 Days
100% DMARC, SPF, DKIM compliance
Improve deliverability, pass Google & Yahoo DMARC checks
Secure Your Domain Free for 14 Days
100% DMARC, SPF, DKIM compliance
Improve deliverability, pass Google & Yahoo DMARC checks
