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550 5.1.1

  1. Z

    Issue problem with mail

    hello, hope everyone is doing well. I'm trying to configure mail in Plesk, with a domain that's configured in GoDaddy. every time I try to send an email to an external address it gives me a smtp error 550 5.1.1 and when I send it internally it says it was sent successfully but when I check I...
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