Certification
The Certification program helps make sure your email is delivered to your subscribers’ inboxes. Getting and staying certified positively influences inbox placement rates with major mailbox providers like Yahoo!, Microsoft, AOL, Comcast, and more. Use this section to find general information about the program, or get detailed answers about Certification compliance and Sender Reputation Data (SRD).
Becoming certified
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Certification Requirements 2019 (PDF)
Return Path has updated the Certification Requirements. The document includes comprehensive infor...
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What is Certification? (video)
This video gives you a thorough explanation of Return Path's Certification.
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Requisitos da Certificação Julho 2018 (PDF)
A Return Path atualizou os Requisitos de Certificação. Este documento inclui informações completa...
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Prerequis de la Certification juillet 2018 (PDF)
Ce document comprends des informations exhaustives pour les expéditeurs désirant mieux comprendre...
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Which mailbox providers and security vendors accept the Return Path Certification whitelist?
Due to confidentiality agreements with participating partners, we cannot share any type of list. ...
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Certification quick reference guide
The Certification program helps make sure your email is delivered to your subscribers’ inboxes. G...
Certification training
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Certification: Daily Performance Report (video)
This video gives you an overview of Return Path's Certification Daily Performance Report.
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Certification FAQ (PDF)
The attached PDF is the Certification FAQ. Use this document to find answers to the most frequent...
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IP Certification: IP Dashboard and Trends overview (video)
In this video, you’ll learn how to use the Return Path IP Certification user interface to monitor...
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IP Certification: How to add, remove and name certified IP addresses (video)
In this video, you’ll learn how to manage the IP addresses that you have enrolled in the Return P...
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Domain Certification: Domain Dashboard overview (video)
In this video, we show you how to use the Return Path Domain Certification user interface to moni...
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Domain Certification: Daily Summary Report overview (video)
The Daily Summary Report is an excellent way to quickly monitor your Domain Certification status ...
Understanding Sender Reputation Data (SRD)
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What is Sender Reputation Data (SRD)?
Sender Reputation Data (SRD) is a unique email feedback system operated by Microsoft. The goal of...
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How does the Microsoft Sender Reputation Data (SRD) voting system work?
The Sender Reputation Data program is a unique email feedback system operated by Microsoft, in wh...
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What do the Microsoft Sender Reputation Data (SRD) panelist emails look like?
Microsoft Sender Reputation Data (SRD) emails are wrapped and redelivered by Microsoft for the pu...
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Why did my IP address suddenly show a large change in Sender Reputation Data (SRD) votes?
Sometimes a certified IP address may experience a large and sudden increase or decrease in the nu...
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How can I lower my Sender Reputation Data (SRD) rates?
A high Sender Reputation Data (SRD) rate can have a detrimental impact to your inbox placement ra...
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How are Microsoft Sender Reputation Data (SRD) rates used in IP Certification compliance?
Microsoft Sender Reputation Data (SRD) rate is a compliance metric used in the Return Path Certif...