Select the domain you want to configure.When to set up a DMARC record<\/h4>\n\n\n\n Regardless of which policy you are setting, we will start by explaining the common parts.<\/p>\n\n\n\n
\nhostname<\/strong>- Enter _dmarc<\/li>\n\n\n\ntype<\/strong>- Set it as TXT<\/li>\n<\/ul>\n\n\n\nRegarding VALUE, the setting will change depending on the DMARC policy.<\/p>\n\n\n\n
<\/span>First, set it to do nothing<\/span><\/h3>\n\n\n\nThe initial setting is to do nothing.
For xserver<\/h4>\n\n\n\n\nDMARC Policy Settings \u2013 Select Do nothing<\/li>\n\n\n\n Report notification settings - Turn it on and set the email address to receive notifications<\/li>\n<\/ul>\n\n\n\nFinally, press the "Set" button once to complete the setup.<\/p>\n\n\n\nHow to write a DMARC record<\/h4>\n\n\n\n How to write VALUE.<\/p>\n\n\n\n
v=DMARC1; p=none; rua=mailto:test@example.com<\/code><\/pre>\n\n\n\n\nv - Set the version of DMARK. Currently it is "DMARK1".<\/li>\n\n\n\n p - What to set for the DMARK policy. This time, set "none" to do nothing.<\/li>\n\n\n\n rua - 1 Enter the email address to which the periodic report will be sent. Set it in the format "mailto: email address".<\/li>\n<\/ul>\n\n\n\nv=DMARC1; p=none; sp=none; rua=mailto:test@example.com<\/code><\/pre>\n\n\n\nIf you are using an email address with a subdomain, add the item "sp".<\/p>\n\n\n\n\nPlease use half-width alphanumeric characters<\/li>\n\n\n\n In particular, please be careful that spaces are not full-width because they will not be visible.<\/li>\n\n\n\n If you want to continue with the next specification, connect it with a semicolon ";" (the green part)<\/li>\n\n\n\n The email address is "mailto:" and the ":" is used, so please make sure you do not make a mistake (yellow)<\/li>\n<\/ul>\n\n\n\nThis is the actual setting screen. The default TTL of "3600" is fine.<\/p>\n\n\n\n<\/span>The report email will be sent in English.<\/span><\/h2>\n\n\n\nIt's easy to overlook this, but the email arrives in English and the domain includes "dmarc."<\/p>\n\n\n\n<\/span>When you receive a report email, change the settings to send it as spam.<\/span><\/h3>\n\n\n\nAfter the initial setting of doing nothing if authentication fails, when you receive the report email, change the setting to "Deliver as spam."<\/p>\n\n\n\n
<\/span>For xserver<\/span><\/h3>\n\n\n\nChange your DMARC policy to "Deliver as spam".<\/p>\n\n\n\n<\/span>For DMARC records<\/span><\/h3>\n\n\n\nIn the case of DMARC records, the two places to change are "p=none" and "sp=non". Change them to "quarantine".<\/p>\n\n\n\n
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:test@example.com<\/code><\/pre>\n\n\n\nrua can also be used to set up notifications for when authentication fails (if spoofing is attempted) for sending certain reports. Set this in the same way as rua, using the tag "ruf".<\/p>\n\n\n\n
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:test@example.com; fur:mailto:test.example.com<\/code><\/pre>\n\n\n\n<\/span>Setting not to deliver at the end<\/span><\/h3>\n\n\n\nIf you are able to exchange emails without any problems even with the settings set to send emails as spam, then finally change the settings so that spoofed emails are not sent.<\/p>\n\n\n\n
<\/span>For xserver<\/span><\/h3>\n\n\n\nChange the setting to "Do not deliver email."<\/p>\n\n\n\n<\/span>For DMARC records<\/span><\/h3>\n\n\n\nFor DMARC record, change it to "reject".<\/p>\n\n\n\n
v=DMARC1; p=reject; sp=reject; rua=mailto:test@example.com; fur:mailto:test.example.com<\/code><\/pre>\n\n\n\nThis completes the DMARK setup.<\/p>\n\n\n\n
<\/span>Stripe will switch to Stripe domain email if DMARC authentication is not performed<\/span><\/h2>\n\n\n\nWhat prompted me to set up DMARC this time was a notice sent by Stripe stating that anyone who sends email using their own domain and has not set up DMARC will be forced to switch to Stripe email.<\/p>\n\n\n\n
It would be helpful if there was a server that provided an environment where DMARC could be easily configured, such as xserver.<\/p>","protected":false},"excerpt":{"rendered":"
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