5 Website Development Tips To Boost Your Business Growth Exponentially
550 Access denied – Invalid HELO name (See RFC2821 126.96.36.199)
How to fix:
This error means that there is no reverse DNS lookup for the domain sending the helo.
To fix this setup your hostname correctly with a valid host.domain.com and go to the authorized DNS server for that domain and create an A record which points to the corresponding IP Address.
Published on: Mar 03, 2021
Categories: Web Development
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