If you notice delays when sending emails to Yahoo addresses through Elvanto, it may be due to a spam prevention method called greylisting. This article explains what greylisting is and how you can work with your domain provider to improve email deliverability.
What is Greylisting?
Yahoo uses a technique called greylisting as part of its effort to prevent spam.
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When a message is first sent to Yahoo, its server may temporarily reject the message.
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Legitimate email servers will automatically retry sending after a short delay.
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If the retry attempt follows Yahoo’s expected pattern, the message is then accepted and delivered.
While greylisting helps protect inboxes, it can result in temporary delivery delays for emails you send to Yahoo addresses.
How to Help Improve Email Delivery to Yahoo
You can take additional steps to reduce delays and improve the chances of immediate delivery:
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Contact Your Domain Provider:
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Ask if they can review your domain’s email settings.
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Inquire about any additional steps they recommend to ensure prompt email delivery to Yahoo and other providers.
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Ensure Proper Email Authentication:
Work with your IT team or domain host to make sure the following settings are properly configured:-
SPF (Sender Policy Framework): Confirms your domain is authorized to send emails on your behalf.
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DKIM (DomainKeys Identified Mail): Adds a digital signature to your emails, verifying that they haven't been altered.
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Reverse IP Mapping (PTR Record): Ensures that your server’s IP address correctly maps back to your domain name, further boosting trust with receiving servers.
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Correctly setting up these authentication methods helps improve your sender reputation, which can minimize delays and reduce the risk of emails being filtered or rejected.