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✖ MTA-STS policy is missing: STSFetchResult.NONE

eXTric November 28, 2023, 8:04pm 2

Patience as it usually resolves itself and search

[SOLVED] V0.50 MTA-STS policy is missing: STSFetchResult.NONE Maintenance

This error occurred after an upgrade process on our servers. Find below a step by step we used to fix the problem. upgrade Login to server via SSH (putty for windows) sudo apt-get update && sudo apt-get upgrade reboot Login to server via SSH (putty for windows) curl -s https://mailinabox.email/setup.sh | sudo bash Answer questions Provision the certificates from Lets Encrypt Select [System] menu (Top Menu) Select TLS (SSL) Certificates Select [Reprovision] button upgrade again. Login …

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