How to setup a Let'sEncrypt hostname certificate for VestaCP, Exim, Dovecot...

[Wibols]

This process have been tested on a CentOS 7 VPS, but should to work in others distros. In this example, we will use mail.domain.tld as our server hostname, but can be any other.

Under "VestaCP/Web/+" we create the mail.domain.tld subdomain. The only needed option is "SSL/Let'sEncript". DNS Support, Mail Support, Aliases, Proxy can be removed/unmarked.

To do the above, we can also use:

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ssh [email protected]
/usr/local/vesta/bin/v-add-domain USER DOMAIN [IP] [RESTART]
/usr/local/vesta/bin/v-add-letsencrypt-domain USER DOMAIN [ALIASES] [RESTART] [NOTIFY]

This empty web subdomain is required on every Let'sEncrypt verification process. Don't remove.

We wait for a few minutes while certificate is issued. We can check it in "VestaCP/Web/mail.domain.tld/SSL Support: Lets encrypt" info panel. Use "F5" for refresh.

Now we need to setup the system hostname for our server, verify it and a reboot is required:

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ssh [email protected]
hostnamectl set-hostname mail.domain.tld
hostnamectl
reboot

We update the VestaCP host certificate:

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ssh [email protected]
/usr/local/vesta/bin/v-update-host-certificate 'admin' $HOSTNAME

From this moment, we will need to use https://mail.domain.tld:8083/ to enter the control panel.

We add the line "UPDATE_HOSTNAME_SSL='yes'" to "/usr/local/vesta/conf/vesta.conf" file for certificate autoupdate:

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echo "UPDATE_HOSTNAME_SSL='yes'" >> /usr/local/vesta/conf/vesta.conf

Don't forget to point your "PTR record" (reverse DNS) to "mail.domain.tld" in your VPS control panel. This step is important to legitimize your mail.

System, VestaCP, SMTP and IMAP/POP3 host names must be the same and match with certificate (CN) field and PTR record in DNS zone to avoid mail problems.

[resif]

hello

i want to make this settings for gmail export my info mails...
bcos for gmail ssl connect i need to make my hostname secure...
with this settings is this posibble...

Don't forget to point your "PTR record" (reverse DNS) to "mail.domain.tld" in your VPS control panel. This step is important to legitimize your mail.

and i dont know how to make this... thank you