Register your legitimate email server for your own domain! Introducing examples of operation and limitations.
On our company website, we introduce measures against spoofing emails and the specifications for email encryption. "SPF (Sender Policy Framework)" is a specification that explicitly notifies the receiving MTA of the authorized MTAs by listing the MTAs that can send emails using the email addresses of the managed domain as DNS records. By setting up an SPF record, the receiving mail server can determine whether the email was sent from a legitimate mail server when it receives the email. Please refer to the related links for more information. [Contents] ■ Examples of operation ■ With only SPF settings, how to handle processing is left to the receiving mail server ■ If the sender wants to control the processing, DMARC settings are necessary ■ Is MX record not sufficient? ■ Limitations of SPF ■ Examples that cannot be prevented by SPF records alone *For detailed information, please refer to the related links. For more information, feel free to contact us.
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We have established and operate measurement and monitoring centers in five cities across the country (Sapporo, Niigata, Tokyo, Osaka, and Fukuoka). The measurement and monitoring systems in operation there are used by major IT companies such as Google and Microsoft, e-commerce sites, and mobile companies like Verizon. We monitor the communication status of your web systems from various locations 24/7, analyze the data, and optimize it to support fast and stable web operations. We can detect communication failures and server issues that have been occurring frequently lately through measurements from across the country and immediately raise alerts. Additionally, we provide a web performance tuning service that ensures the display speed of websites, web applications, and mobile applications is completed within one second nationwide, achieving a 98% yield. Based on statistical quality control, we collect and analyze data, and guarantee the achievement of displaying within one second through genuine performance tuning that fixes issues from the source code. Please feel free to contact us if you have any requests.