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Server: Apache
System: Linux vps-cdc32557.vps.ovh.ca 5.15.0-156-generic #166-Ubuntu SMP Sat Aug 9 00:02:46 UTC 2025 x86_64
User: hanode (1017)
PHP: 7.4.33
Disabled: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
$ pwd: /usr/share/webmin/virtual-server/help/
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File: //usr/share/webmin/virtual-server/help/mail_mta_sts.html
<header>Enable MTA-STS for this domain?</header>

MTA-STS is a protocol for informing other mail servers that
email sent via SMTP to this domain should only be delivered over a secure
transport. When this option is enabled, Virtualmin will create the required
DNS records, webserver config and SSL certificate (if possible) to enable
encrypted incoming email delivery. <p>

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