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DevOps & SysAdmins: postfix - dns error - can't resolve my A or MX record
Roel Van de Paar
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DevOps & SysAdmins: Postfix reverse DNS (PTR) EHLO mismatch (2 Solutions!!)
Roel Van de Paar
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2:29
DNS Record Types Explained #dns #devops #networksecurity
Compution - Cloud, AI & Machine Learing
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2:27
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DevOps & SysAdmins: Client host rejected: cannot find your hostname + SMTP
Roel Van de Paar
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24:42
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3:23
Postfix: Name service error for name=domain.com type=MX: Host not found, try again
Roel Van de Paar
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3:16