Anti-spam measures¶

To ensure reliable email delivery, Repro requires SPF, DKIM, and DMARC authentication. These prevent unauthorized email sending and protect your domain's reputation. This page explains the authentication setup process before sending emails.

About SPF, DKIM, and DMARC authentication¶

Authentication method	Description
SPF (Sender Policy Framework)	A mechanism to authorize mail servers allowed to send from a specific domain. Prevents spoofed emails from unauthorized servers.
DKIM (DomainKeys Identified Mail)	Adds a digital signature to emails to prevent tampering after sending.
DMARC (Domain-based Message Authentication, Reporting, and Conformance)	A policy to verify correct SPF and DKIM setup and determine how to handle unauthorized emails.

Setup flow¶

Please follow these steps for setup.

Respond to the hearing form sent by Repro
Set the configuration values issued by Repro to your domain
Receive a connectivity confirmation email after domain setup

Respond to the hearing form sent by Repro¶

When you sign up for the email option, Repro Customer Success or Sales will send you a hearing form regarding the domain to be used for email delivery and the method of email address integration. Please answer the questions in the form.

Set the configuration values issued by Repro to your domain¶

Based on the information in the hearing form, Repro will send you the DNS record settings for your sender domain. Please configure these in your DNS service's management screen.

Note

'example.com' is a sample. Replace it with your actual domain.

Example of configuration values sent by Repro

ドメイン                  DNSレコードタイプ   設定値
mail.example.com         MX                 "10 feedback-smtp.ap-northeast-1.amazonses.com"
mail.example.com         TXT                "v=spf1 include:amazonses.com ~all"
1234rpr._domainkey.example.com TXT          "p=aaaaaa" "bbbbb"
_dmarc.example.com       TXT                "v=DMARC1; p=none;"

Note

To support SPF, DKIM and DMARC, you will need to set various records for subdomains of your domain. The 'mail' subdomain is the default for SPF, but you can change it if needed. If you want to use a subdomain other than 'mail', please contact us. Note: you cannot set records for a domain without a subdomain (e.g., just example.com).

Receive a connectivity confirmation email after domain setup¶

After completing the domain setup, notify Repro. After confirmation, Repro will send you a connectivity confirmation email.

After setup, please use the following tools to verify your domain settings.

Note

If authentication is insufficient, emails may be sent to the spam folder or blocked entirely.