diff options
| -rw-r--r-- | content/mail/validate.md | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/content/mail/validate.md b/content/mail/validate.md index fbdba50..f443768 100644 --- a/content/mail/validate.md +++ b/content/mail/validate.md @@ -209,9 +209,22 @@ an email-authentication standard used to prevent spammers from sending messages that appear to come from a spoofed domain. cat /etc/mailname - echo "v=spf1 mx a:mail.$(cat /etc/mailname) -all" + IP4=<your VPS's IPv4 address> + IP6=<your VPS's IPv6 address> + echo "v=spf1 mx a:mail.$(cat /etc/mailname) ip4:$IP4 ip6:$IP6 -all" + +**Note**: previous versions of this guide didn't ask you to specify the `ip4` +and `ip6` mechanisms. If you don't include them, some email hosts (most +notoriously gmail) will not accept mail from your server. + +The `IP4` and `IP6` values should be the same as what you set your [PTR +records](../rdns.html) to. The output of `cat /etc/mailname` is the Host field. The output of the second command is the TXT value. Again, you can check [that site](https://appmaildev.com/en/spf) to make sure your DKIM, DMARC, and SPF entries are valid. That's it! + +## Contribution + +- SPF mechanisms updated by Martin Chrzanowski \-- [website](https://m-chrzan.xyz), [donate](https://m-chrzan.xyz/donate.html) |