I wonder how did you change your DNS can you share that? Thanks, Remo
> On Aug 28, 2021, at 6:42 AM, Mani Kandan <[email protected]> wrote: > > Have you checked your firewall and server iptables block smtp port 25 or 587 > if any > > Sent from my iPhone > >> On 28 Aug 2021, at 4:18 AM, Edgar Ignacio Vivas Zamorano >> <[email protected]> wrote: >> >> Yes, my DNS server resolve my ip in the mail server, this problem init >> when my ip server blacklisted two days ago, but i modify some dns >> parameters and not listed now in any blacklist >> >> my two servers not delivery any mail. >> >> >>> On Fri, 2021-08-27 at 13:56 -0600, Eric Broch wrote: >>> 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. >>>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: >>> [email protected] >>> For additional commands, e-mail: >>> [email protected] >>> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] >
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