I have one strange problem with one machine using a HestiaCP.
I send a mail from roundcube… and after 1 day I received mail like this:
> This message was created automatically by mail delivery software. > > A message that you sent has not yet been delivered to one or more of its > > recipients after more than 24 hours on the queue on [ns1.suredns.net](http://ns1.zzzzzz.net/). > > The message identifier is: 1nuBAS-00AEI8-4B > > The date of the message is: Thu, 26 May 2022 11:56:35 +0100 > > The subject of the message is: Re: we require dedicated/vps server with windows/linux/cpanel. > > The address to which the message has not yet been delivered is: > > [email protected] > > Delay reason: [H=mail.zzzzzzzzzz.de](http://h%3Dmail.zzzzzzzzzz.de/) [81.3.6.xxx]: > > SMTP error from remote mail server after RCPT TO:: > > 450 4.7.1 Client host rejected: cannot find > > No action is required on your part. Delivery attempts will continue for > > some time, and this warning may be repeated at intervals if the message > > remains undelivered. Eventually the mail delivery software will give up, > > and when that happens, the message will be returned to you.
And I testing this:
C:\Users\xxxx>nslookup 23.106.xx.xxx Server: Hitronhub.home Address: 192.168.0.1 *** Hitronhub.home can't find 23.106.xx.xxx: Non-existent domain
The reason: Client host rejected: cannot find your reverse hostname
So… What I can do for solved this problem? Please give me a advice for this problem
Using Debian 11, and last update HestiaCP ( Hestia Control Panel has been updated to v1.5.15.)
Static hostname: ns1.xxxxx.net Icon name: computer-container Chassis: container Machine ID: e4282835bf2d4444903131c41a2c041a Boot ID: 10a6425869d2472599ade81ec28d9fcb Virtualization: lxc Operating System: Debian GNU/Linux 11 (bullseye) Kernel: Linux 5.13.19-6-pve Architecture: x86-64
DNS Checking its OK , but PTR is not ok… so how I can add PTR record in HestiaCP?
Error: Invalid IP Address.