Cara nya :
- Login to WHM
- Masuk ke menu exim configuration
- Pilih yang advanced config
- Masukan script berikut :
require verify = reverse_host_lookup
message = Your mail server IP address ($sender_host_address) has no reverse DNS PTR
- Dengan tambahan allow sender
require verify = reverse_host_lookup
message = Your mail server IP address ($sender_host_address) has no reverse DNS PTR
!sender_domains = /etc/skiprdns
- Dengan tambahan Allow IP
require verify = reverse_host_lookup
message = Your mail server IP address ($sender_host_address) has no reverse DNS PTR
!hosts = 202.128.85.61
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