1. DNS/SPF/amazon.com

-- ToshinoriMaeno 2021-06-06 23:50:05

amazon.com からのメールが届かないというtweetやSPFが変というtweetを見かけた。

確かに、amazon.com の SPF設定がおかしい。(修正された。-- ToshinoriMaeno 2021-06-06 23:52:29)

spfで受信拒否設定しているサーバーは非常にすくない。

• spamに分類されている可能性はある。海外ではこれから悲鳴が上がるか。

1.1. 検証

https://www.kitterman.com/spf/validate.html

amazon.com /txt

SPF record lookup and validation for: amazon.com
SPF records are published in DNS as TXT records.

The TXT records found for your domain are:
spf2.0/pra include:spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all
wrike-verification=MzI3NzM2ODo2NDk5MjE4NjQ2MWJmOTEwMGMxM2MzNzJmNWJlY2U5ZDU4MmVlNzQ2NWU4MTY5OWJjMjlmYjQ4Mjc5M2JiMzky
MS=4B600B22799EB2CAC0D8FF0A3A3CAECA5EE2BF3A
google-site-verification=14WGW2MdNMxchG8PlinF7LgqqE0OwwHqOq0HKhb7rDQ
v=spf1 include: amazon.com include:spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all
v=spf1 include:spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all
facebook-domain-verification=d9u57u52gylohx845ogo1axzpywpmq
pardot326621=b26a7b44d7c73d119ef9dfd1a24d93c77d583ac50ba4ecedd899a9134734403b

Checking to see if there is a valid SPF record.

DNS: Truncated UDP Reply, SPF records should fit in a UDP packet, retrying TCP

Results - Permanent Error Two or more type TXT spf records found.

No valid SPF record found of either type TXT or type SPF.

Use the back button on your browser to return to the SPF checking tool without clearing the form.