Update dkim.md

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ma.azimi@laposte.net 2015-06-28 13:31:21 +02:00 committed by YunoHost
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@ -154,7 +154,8 @@ To test if it is all working well (don't forget that the DNS propagation can tak
# SPF
Lastly, don't forget to add a SPF key in your [DNS zone](/dns_config_en) such as:
```bash
DOMAIN.TLD 300 TXT "v=spf1 a:DOMAIN.TLD mx ?all"
```
DOMAIN.TLD 300 TXT "v=spf1 a:DOMAIN.TLD ip4:<server public IPv4> ip6:<server public IPv6> mx ?all"
```
As reminder, the SPF field shows that the only machine using the IP address shows in your DNS zone are authorized to send emails.
If you don't have IPv6 on your email server, simply delete le ip6:<...> section