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2019-03-10 09:27 AM
Does anyone know how I contact the Optus Postmaster to check a Server IP and get it unblocked?
Block started: 2019-02-20 12:31:11
Will Expire approximately: Nov 3rd, 2019 at 12PM ET
IP has been blocked 6 times in the past
2019-03-10 10:12 AM
You could try notifying Optus via the first link below however I am sure they are aware of their mail servers being constantly blocked. Unfortunately even changing mail servers is no guarantee that your mail wont be blocked as often a complete range of mail server IP addresses are blocked.