Getting SMTP error for a week now. Contacted my email host, sent them the allowlist instruction provided by HubSpot. They say they have followed all steps but still neither I nor any of my users can connect.
Would you mind clarifying exactly the steps you're taking and where you're getting stuck? If you get an error message, can you send us a screenshot? The more information, screenshots, and details you can provide the better we can assist!
Could you confirm with your IT team if the following requirements are met?