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Diffstat (limited to 'tracker/Publish_the_DKIM_public_key_to_the_DNS_zone.mdwn')
| -rw-r--r-- | tracker/Publish_the_DKIM_public_key_to_the_DNS_zone.mdwn | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tracker/Publish_the_DKIM_public_key_to_the_DNS_zone.mdwn b/tracker/Publish_the_DKIM_public_key_to_the_DNS_zone.mdwn new file mode 100644 index 0000000..7c564ae --- /dev/null +++ b/tracker/Publish_the_DKIM_public_key_to_the_DNS_zone.mdwn @@ -0,0 +1,17 @@ +So anyone receiving an e-mail from `fripost.org`'s outgoing SMTP server +(possibly indirectly) can decide whether it's legit or tampered with. + +The DKIM public key should be added to `fripost.org`'s DNS zone as a TXT +record, as follows: + + 20140112._domainkey.fripost.org. 86400 IN TXT "v=DKIM1\; k=rsa\; p=…" + +Having one sub-domain (here `20140112`, the date where the key was +generated) is what Google does; that's a clever way to allow multiple +keys, which is useful for a smooth transition to a stronger key for +instance. + +See RFCs [6376](https://tools.ietf.org/html/rfc6376) and +[7001](https://tools.ietf.org/html/rfc7001) for references. The +[Wikipedia page](https://en.wikipedia.org/wiki/Dkim) might be another +good read. |