Hi @Carlos H. Carmona !
I'm sorry you're experiencing this difficulty. Unfortunately, Yahoo uses some verification methods that end up blocking Docusign emails because they think we're spam (due to the large volume of emails sent to different yahoo email addresses, always from the same docusign domains) - what we call a ‘false positive’. We, at Docusign, are in frequent contact with the market's blacklists asking them to always unblock our lists, but this contact is not always received favorably.
We have other topics related to the problem, as you can check HERE and HERE, we are always trying to resolve this issue with them and with the blacklists providers.
As an alternative solution, we always recommend that Yahoo recipients include our domains in their whitelists or use other different domains. In parallel, if you want to report this problem, you can open a ticket with our support team and they will handle this information internally with the responsible areas.
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