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DNS record setting for email server

Tech Easy Solutions


DKIM
SPF
DMARC



DKIM

Type Hostname Value TTL (seconds)
TXT
_dmarc.domain.com.domain.com returns
v=DMARC1; rua=mailto:admin@domain.com; ruf=mailto:admin@domian.com; fo=0:1:d:sCopy
3600


SPF

TXT
mailserverdomain.com returns v=spf1 mx a ~all


DKIM generate


sudo apt-get install opendkim opendkim-tools
sudo opendkim-genkey -s mail -d your-domain.com

cat mail.txt

mail._domainkey IN TXT ( "v=DKIM1; k=rsa; "
"p=MIGfT")

https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf

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