DKIM Checker

Look up a specific selector and inspect the published key.

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Result for selector2._domainkey.microsoft.com

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCPkb8bu8RGWeJGk3hJrouZXIdZ+HTp/azRp8IUOHp5wKvPUAi/54PwuLscUjRk4Rh3hjIkMpKRfJJXPxWbrT7eMLric7f/S0h+qF4aqIiQqHFCDAYfMnN6V3Wbke2U5EGm0H/cAUYkaf2AtuHJ/rdY/EXaldAm00PgT9QQMez66QIDAQAB;
Key type
rsa
Key length
1024 bits
Revoked
no
Test mode
no

Issues

  • Warning DKIM key is 1024 bits.
    Modern guidance is 2048+. Most providers can rotate to 2048-bit keys without breaking anything.