Ever worry about someone impersonating your email address to send spam or phishing messages? An SPF (Sender Policy Framework) record is your shield against such spoofing attempts. It acts like a caller ID for emails, clearly indicating which servers are authorized to send emails on behalf of your domain. This helps email recipients identify legitimate messages and protects your reputation.
Ever worry about someone impersonating your email address to send spam or phishing messages? An SPF (Sender Policy Framework) record is your shield against such spoofing attempts. It acts like a caller ID for emails, clearly indicating which servers are authorized to send emails on behalf of your domain. This helps email recipients identify legitimate messages and protects your reputation.
Implementing a strong SPF record is a crucial step towards ensuring your emails reach their intended recipients. Not only does it prevent spoofing, but it also improves email deliverability by giving receiving servers confidence in the origin of your messages. With a well-crafted SPF record in place, you can ensure your emails land in inboxes, not spam folders.
Once you have it set up, it's time to test it with our very own eMail Tester.
TAG | MEANING |
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v | Required: This mandatory tag specifies the SPF version being used. Currently, only "v=SPF1" is allowed. |
a | This tag allows any server with an IP address matching the A record of the specified hostname to send emails. The allowed value is the domain name for which you want to use the A record (e.g., a:campaigncleaner.com). |
mx | Similar to the "a" tag, this tag permits any server with an IP address matching the MX record of the specified hostname. The allowed value is the domain name for which you want to use the MX record (e.g., mx:campaigncleaner.com) |
ip4 | This tag specifies an allowed IPv4 address or a range of addresses using CIDR notation. The allowed value is either a single IPv4 address (e.g., ip4:192.168.1.1) or an IP address with a forward slash (/) followed by the CIDR subnet mask (e.g., ip4:192.168.0.0/24). |
ip6 | Similar to ip4, this tag defines an authorized IPv6 address or a range using CIDR notation. The allowed value is either a single IPv6 address (e.g., ip6:2001:db8::1) or an IP address with a forward slash (/) followed by the CIDR subnet mask (e.g., ip6:2001:db8::/64). |
ptr | This tag allows mail servers to perform a reverse DNS lookup on the sending server's IP address. If the hostname returned by the reverse lookup matches the specified hostname, the email is considered authorized. The allowed value is the domain name for the reverse DNS lookup (e.g., ptr:campaigncleaner.com). |
includes | This tag allows you to incorporate the SPF record of another domain. This is useful for including subdomains or relying on a third-party email service provider's SPF record. The allowed value is the domain name of the record you want to include (e.g., include:_spf.campaigncleaner.com). |
exists | The exists mechanism in SPF records offers a way to perform conditional checks based on DNS lookups. |
redirect | The "Redirect" mechanism lets a domain hand off its SPF policy to another domain. |
all |
This powerful tag defines how to handle emails from unauthorized sources.
Here are the allowed qualifiers:
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