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5.X.X Permanent Error: These mistake codes start with the range “5” and they are accompanied by two figures. They commonly signify that the SMTP connection has dropped. If you are attempting to resend the email, it can likely even now bring about precisely the same error. Info: This triggers https://rylankbozk.blogcudinti.com/26564838/the-5-second-trick-for-smtp-server


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