Wednesday, 21 September 2016

Mail Server Setup to avoid SPAM/JUNK

Mail Server Setup to avoid SPAM/JUNK::
Make sure to setup rDNS,SPF,DKIM authentications on your mail server to avoid being marked as spam

1. rDNS setup

2. SPF 
SPF and SenderID allow a domain owner to add a file or record on the server that the recipient server cross-checks.
v=spf1 ?all

3. DKIM Authentication
DKIM and DomainKeys embed information within the email, making it harder to forge (but they can also be harder to implement for senders and receivers).

We can make the setups in the mail server dns zone file

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