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Yahoo! Mail users rely on trustworthy, authentic email - CertifiedEmail helps us provide just that. 
John Kremer | Vice President | Yahoo! Mail 
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Senders – Register for CertifiedEmail Updates


Who Accepts Certified Email?

CertifiedEmail™ is supported by a growing network of leading ISPs and mailbox providers who treat incoming CertifiedEmails as trusted-class messages. This means certain privileges are afforded to CertifiedEmail:

  • Direct delivery of 100% of all CertifiedEmail messages to the recipient's inbox, past content and volume filters
  • Automatic rendering of links and images on default
  • Labeling of CertifiedEmail messages with a unique blue ribbon envelope icon, signifying to the consumer that your email is a legitimate message from a verified sender

CertifiedEmail is currently available at AOL and Yahoo! and is expected to be available at our other ISP partners soon.

CertifiedEmail™ is supported by the following Internet Service Providers:
AOL* AT&T
BT Comcast
Cox Communications Time Warner Cable
Verizon Yahoo*
  • In addition to their normal email service, AOL and Yahoo also have international services capable of receiving CertifiedEmail.. Please refer to our International page to see availability by country.
  • AOL also maintains the following email domains capable of receiving CertifiedEmail service: AIM.com, CS.com (Compuserve) and WMCONNECT.com (Walmart Online)

CertifiedEmail Coverage

% of average B2C sender's list served by CertifiedEmail, according to ESP data