Therefore, here are some powerful tools\/records that can help you fight against email spoofing.<\/p>\n\n\n\n
Email spoofing protection<\/h2>\n\n\n\nAdd SPF (Sender Policy Framework) Record<\/strong>:<\/h3>\n\n\n\nSPF is used for email verification and authentication deals with email spoofing. However, SPF contains the list of allowed IP addresses\/hostnames that can send emails using your domain. <\/p>\n\n\n\n
If the IP address\/hostname doesn’t match, then the email provider will block the message.<\/p>\n\n\n\n![\"email\"](\"https:\/\/cloudkul.com\/blog\/wp-content\/uploads\/2020\/10\/image-3.png\")
<\/figure>\n\n\n\nSPF Record Syntax: <\/strong>After defining the SPF record, it might look something like this: <\/p>\n\n\n\nv=spf1 ip4:xx.xx.xx.xx ip6: include:thirdpartydomain.com ~all<\/pre>\n\n\n\n
\n- where v<\/strong>: define the version of the SPF record.<\/li>\n\n\n\n
- ip4<\/strong>, ipv6: define the IP addresses that are authorized to send an email on your behalf<\/li>\n\n\n\n
- include: <\/strong>Define the third-party organization that is used to send emails on your behalf <\/li>\n\n\n\n
- ~all<\/strong>: If an email comes from another domain, the email will be marked as a soft fail<\/li>\n<\/ul>\n\n\n\n
Add DKIM (DomainKeys Identified Mail) record<\/strong>:<\/h3>\n\n\n\nDKIM is based on encryption, which validates the email and ensures that the message has not been modified. However, It’s a signature-based tool to implement efficient email domain authorization. <\/p>\n\n\n\n
DKIM uses the email domain’s TXT record to assign a unique key to outgoing emails, which is included in the header and verified by the receiver’s server.<\/p>\n\n\n\n
DKIM Record Syntax<\/strong>: <\/p>\n\n\n\n\"v=DKIM1\\; k=rsa\\; p=jkdhfrjijjdsojfiwjddjivkjkfjvjskjskjdkdck nlsl\"<\/pre>\n\n\n\n
\n- Where v: <\/strong>define DKIM protocol version<\/li>\n\n\n\n
- p:<\/strong> Define your base64 encoded public key<\/li>\n\n\n\n
- k<\/strong>: provide the list of algorithms that can be used to decode DKIM signature (mostly use RSA algorithm) <\/li>\n<\/ul>\n\n\n\n
Add DMARC (Domain-based Message Authentication, Reporting, and Conformance) record<\/strong>:<\/h3>\n\n\n\nThis is one of the advanced methods for email authentication. DMARC allows the receiver to know whether the received email is verified against the SPF and DKIM records. <\/p>\n\n\n\n
It also provides a feature to take action against spoofed emails going from their domain.<\/p>\n\n\n\n
DMARC Check<\/strong>: <\/p>\n\n\n\n SPF<\/strong> <\/td> DKIM<\/strong> <\/td> DMARC<\/strong> <\/td><\/tr>If <\/strong>fail \u2717<\/td>If<\/strong> Fail \u2717<\/td>Then <\/strong>fail \u2717<\/td><\/tr>If <\/strong>fail \u2717<\/td>If <\/strong>pass \u2713<\/td>Then <\/strong>fail \u2717<\/td><\/tr>If <\/strong>Pass \u2713<\/td>If <\/strong>pass \u2713<\/td>Then <\/strong>pass \u2713<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nDMARC keeps the domain secure through a step-by-step running process. <\/p>\n\n\n\n
When a sender sends an email, the SPF is verified via DNS record if matches then the verified DKIM signature is against the DNS record.<\/p>\n\n\n\n
And finally, if both records do not match, depending upon DMARC policy we can take action against mail. We can define DMARC policy as<\/p>\n\n\n\n
v=DMARC1; p=none; rua=mailto:a97e55a7b857189@dmarcmonitor.net<\/span><\/code><\/p>\n\n\n\n\n- Where v: <\/strong>define the version of the DMARC record<\/li>\n\n\n\n
- rua: <\/strong>define addresses to which aggregate feedback is to be sent<\/li>\n\n\n\n
- p: <\/strong>define policy and its valid value can be:<\/li>\n\n\n\n
- IF p=\u2019none\u2019<\/strong>: no action<\/li>\n\n\n\n
- IF p=\u2019reject\u2019<\/strong>: reject all emails that fail the DMARC check<\/li>\n\n\n\n
- IF p= \u2018quarantine\u2019<\/strong>: emails will end up in the junk(spam) folder of the receiver<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
Conclusion of Email Spoofing<\/h2>\n\n\n\n
Spoofed mail is hard to detect for a person because mail looks legitimate.<\/p>\n\n\n\n
To safeguard your domain and organization from email spoofing attacks implement SPF, DKIM, and DMARC records on your email server, and for email security best practices follow this blog<\/a>.<\/p>\n\n\n\nIn case of any help or query, please contact<\/a> us or raise a ticket<\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
SPF is used for email verification and authentication deals with email spoofing. However, SPF contains the list of allowed IP addresses\/hostnames that can send emails using your domain. <\/p>\n\n\n\n
If the IP address\/hostname doesn’t match, then the email provider will block the message.<\/p>\n\n\n\n SPF Record Syntax: <\/strong>After defining the SPF record, it might look something like this: <\/p>\n\n\n\n DKIM is based on encryption, which validates the email and ensures that the message has not been modified. However, It’s a signature-based tool to implement efficient email domain authorization. <\/p>\n\n\n\n DKIM uses the email domain’s TXT record to assign a unique key to outgoing emails, which is included in the header and verified by the receiver’s server.<\/p>\n\n\n\n DKIM Record Syntax<\/strong>: <\/p>\n\n\n\n This is one of the advanced methods for email authentication. DMARC allows the receiver to know whether the received email is verified against the SPF and DKIM records. <\/p>\n\n\n\n It also provides a feature to take action against spoofed emails going from their domain.<\/p>\n\n\n\n DMARC Check<\/strong>: <\/p>\n\n\n\n DMARC keeps the domain secure through a step-by-step running process. <\/p>\n\n\n\n When a sender sends an email, the SPF is verified via DNS record if matches then the verified DKIM signature is against the DNS record.<\/p>\n\n\n\n And finally, if both records do not match, depending upon DMARC policy we can take action against mail. We can define DMARC policy as<\/p>\n\n\n\n <\/p>\n\n\n\n Spoofed mail is hard to detect for a person because mail looks legitimate.<\/p>\n\n\n\n To safeguard your domain and organization from email spoofing attacks implement SPF, DKIM, and DMARC records on your email server, and for email security best practices follow this blog<\/a>.<\/p>\n\n\n\n In case of any help or query, please contact<\/a> us or raise a ticket<\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<\/figure>\n\n\n\nv=spf1 ip4:xx.xx.xx.xx ip6: include:thirdpartydomain.com ~all<\/pre>\n\n\n\n
\n
Add DKIM (DomainKeys Identified Mail) record<\/strong>:<\/h3>\n\n\n\n
\"v=DKIM1\\; k=rsa\\; p=jkdhfrjijjdsojfiwjddjivkjkfjvjskjskjdkdck nlsl\"<\/pre>\n\n\n\n
\n
Add DMARC (Domain-based Message Authentication, Reporting, and Conformance) record<\/strong>:<\/h3>\n\n\n\n
SPF<\/strong> <\/td> DKIM<\/strong> <\/td> DMARC<\/strong> <\/td><\/tr> If <\/strong>fail \u2717<\/td> If<\/strong> Fail \u2717<\/td> Then <\/strong>fail \u2717<\/td><\/tr> If <\/strong>fail \u2717<\/td> If <\/strong>pass \u2713<\/td> Then <\/strong>fail \u2717<\/td><\/tr> If <\/strong>Pass \u2713<\/td> If <\/strong>pass \u2713<\/td> Then <\/strong>pass \u2713<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n v=DMARC1; p=none; rua=mailto:a97e55a7b857189@dmarcmonitor.net<\/span><\/code><\/p>\n\n\n\n\n
Conclusion of Email Spoofing<\/h2>\n\n\n\n