Yahoo! JAPAN

2024/4/18 -Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in ...

2020/7/6 -On #Exchange2013 I am getting the error message as follows, generated the error '[{LRT=};{LED=450 4.7.25 Client host rejected: cannot find your ...

2020/7/6 -25 Client host rejected: cannot find your hostname, [xxx.xxx.xxx.130]};{FQDN=};{IP=}]'. I am getting this error message only when the user sends ...

2020/10/14 -I configured an A entry in our DNS manager for our domain. But it seems that the configuration of the datacenter's resolution is getting ...

2021/2/16 -1 . Check the hostname resolves from a workstation other than the server: · 2 . Make sure the IP from the above command is bound to the server by ...

Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in ...

2018/8/22 -I'm currently messing around with my mail-setup here. Everything is working properly except receiving mails (which should obv. work). I'm ...

2020/4/14 -Recently i've needed to begin sending e-mails to an international client who seems to have a bit of a strict mailserver setup (as other ...

2022/11/21 -Try the following methods to troubleshoot: Ask the sender to check the mapping between the hostname and IP address in DNS records.

I've configured SMTP properly yet I can't deliver my mail (e.g. by testing the mail) as a valid hostname has to be sent to the mailserver. Deployment ...