Schlagwort: Antispam

Install OpenDKIM

Veröffentlicht am 2018-02-102021-12-14 von Gerald

Install OpenDKIM apt update && apt -y dist-upgrade && apt -y install opendkim opendkim-tools Configure OpenDKIM vi /etc/opendkim.conf AutoRestart Yes AutoRestartRate 10/1h SyslogSuccess Yes LogWhy Yes Canonicalization relaxed/simple ExternalIgnoreList refile:/etc/opendkim/TrustedHosts

Install SPF

Veröffentlicht am 2018-02-042021-12-14 von Gerald

The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. Setup TXT record in your nameserver v=spf1 mx ip4:255.255.255.255 ip4:255.255.255.254 ~all mx