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Third Party application cannot send mail to yahoo recipients using yahoo as sender address

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New 'Hoo

Third Party application cannot send mail to yahoo recipients using yahoo as sender address

Our business sends construction work orders via email to contractors using our proprietary email generator through a Securence (US Internet) email system. The sender address reflects our client's email address, not ours. It is designed to deliver from any email address to any email address. It has failed to deliver except when the sender has a yahoo email address, in which case it will deliver to all addresses we tested except recipients with yahoo or gmail accounts. No other sender email addresses have caused this problem. Any suggestions? Is this a DMARC thing? Special SMTP or POP settings needed?

1 ACCEPTED SOLUTION

Accepted Solutions
Mail Pro All-star

Re: Third Party application cannot send mail to yahoo recipients using yahoo as sender address

Greetings @GHOM

 

You would need to contact the Yahoo Postmaster for more information.  Please be aware that the free Yahoo account as well as the paid Yahoo Mail Pro accounts are for personal use only.  Using them for business purposes can results in these accounts being deactivated or disabled without notice.  A Yahoo Small Business account should be used for these purposes.

 


Please give Kudos for any answer you like
Please click the Accept as Solution button if an answer resolves your issue

Please note that the classic version of Yahoo Mail will no longer be available after January 30, 2019. At that time, you'll be upgraded to the latest version of Yahoo Mail or basic Mail, depending on your browser's compatibility.
2 REPLIES
New 'Hoo

Re: Third Party application cannot send mail to yahoo recipients using yahoo as sender address

Sorry, didn't proof read. It always works unless sender is identified as a yahoo email address, then it fails to yahoo or gmail recipients.

Mail Pro All-star

Re: Third Party application cannot send mail to yahoo recipients using yahoo as sender address

Greetings @GHOM

 

You would need to contact the Yahoo Postmaster for more information.  Please be aware that the free Yahoo account as well as the paid Yahoo Mail Pro accounts are for personal use only.  Using them for business purposes can results in these accounts being deactivated or disabled without notice.  A Yahoo Small Business account should be used for these purposes.

 


Please give Kudos for any answer you like
Please click the Accept as Solution button if an answer resolves your issue

Please note that the classic version of Yahoo Mail will no longer be available after January 30, 2019. At that time, you'll be upgraded to the latest version of Yahoo Mail or basic Mail, depending on your browser's compatibility.