What is SPF? To prevent spam

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For example, if the sender's address is "hana@△△.jp", the email should be delivered from a server managed by "△△.jp".

When the email reaches the recipient Taro's mail server, the sender's domain name is first identified from the destination or envelope.

The next email received is checked to see if it was sent from a mail server with that domain name.

This will help prevent you from receiving fake emails.



SPF (Sender Policy Framework)
How to authenticate sending domains to loan officer email list verify that email senders' domains are legitimate




This time, we will tell you about "SPF", which is effective in preventing spam. SPF (Sender Policy Framework) is a sending domain authentication method that verifies whether the sender domain is not spoofed when sending and receiving email.
Alala Message


DKIM (Domainkeys Identified Mail)
A method for detecting sender spoofing using the sender's digital signature




What is DKIM? To prevent spam
DKIM is a sending domain authentication using digital signatures. It is called "Dee-Kim". The receiving mail server verifies the legitimacy of the sender and the body of the email by verifying the digital signature added to the email header with the public key (publicly available and necessary for encryption) published by the sending domain's DNS.
Alala Message


If you are DKIM compliant, use Arara Message
Alara Messages provided by Alara supports DKIM.

If you are considering strengthening your security, please feel free to contact us.