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Yahoo Mail forwarding is available with Yahoo Mail Plus and is not available in every locale. The setting may not appear in your account.

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Prerequisites

  • A Yahoo Mail Plus subscription.
  • A Mermail mailbox address.
  • A locale and account where Yahoo exposes automatic forwarding.

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Enable forwarding

1

Open Yahoo settings

In Yahoo Mail, click Settings and then More Settings.
2

Choose the mailbox

Click Mailboxes and select the primary mailbox account.
3

Enter the destination

Under Forwarding or Auto-forwarding, enter the Mermail mailbox address.
4

Verify the address

Click Verify, then open the message delivered to Mermail and follow its instructions.
5

Test new mail

Send a new message to the Yahoo address and confirm that it appears in Mermail.
Yahoo’s published forwarding setup is account-wide. Do not assume selective forwarding is available unless your current Yahoo Mail interface provides supported rule conditions for it.
If the account contains messages that should not reach AI, use a dedicated Yahoo address for the Mermail workflow or choose a provider that supports conditional forwarding.

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Stop forwarding

Return to Settings → More Settings → Mailboxes, select the primary mailbox, and remove or disable the forwarding address.

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Human takeover

If you reply to a forwarded thread directly in Yahoo Mail, Mermail treats the entire thread as human-managed and permanently stops AI processing for it.

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Troubleshooting

For current provider instructions, see Enable automatic email forwarding in Yahoo Mail.