i am indonesian, not good in english. sorry if you cant understand.
we have our own mail server using zimbra. few days ago, our company start install fiber optics. so our ISP changes a lot of network configuration.
mail server works right as usually till 14 oct. we start cant receive any email using zimbra.i check in mail queues (admin panel), there are 300+ mails deferred, from a lot of domain (yahoo, gmail, ourdomain, etc).
i try to contact our ISP but they just give me respond that our IP got listed by TIOPAN. i try to contact tiopan, n there is still no answer from them, while we got to make mail server works.
in mail queues, i hover my pointer to the defered mail detail, the reasons say : "connect to domain[our_ip]:7025:connection refused"
what should i do? i am not pro in mail.. please help me.!
our mail server ip 18.104.22.168