Do you know the IP address to which you're email server is trying to
connect?
Does your email server resolve the domain name properly.
On 8/27/2021 1:50 PM, Edgar Ignacio Vivas Zamorano wrote:
hello i have this error
delivery 18: deferral:
sorry,_I_wasn't_able_to_establish_an_SMTP_connection._(#4.4.1)/
my ip not listed in any blacklist.
i have two mail servers with the same configuration and not delivery
any message.
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