Secure iRedMail Server with Let's Encrypt SSL Certificate

1. Are Let's encrypt certificates secure?
2. Is iRedMail secure?
3. Can SSL certificates be used on different servers?
4. How do I get rid of lets encrypt SSL?
5. What's wrong with Letsencrypt?
6. Why is Letsencrypt only 90 days?
7. What is the best free mail server?
8. Does DigitalOcean block port 25?
9. Can I reuse my SSL certificate?
10. Can I buy SSL for subdomain?
11. Where is SSL certificate on server?

Are Let's encrypt certificates secure?

Let's Encrypt is a new Certificate Authority (CA) that offers FREE SSL certificates that are just as secure as paid certificates. This project was pioneered to make encrypted connections the default standard throughout the Internet.

Is iRedMail secure?

iRedMail focuses on privacy, to make sure all your data are protected on your own servers, and the best security practices are enabled by default forcing all users to use mail services through secure connections (POP3/IMAP/SMTP over TLS, webmail with HTTPS). ... For more about iRedMail, please check its homepage.

Can SSL certificates be used on different servers?

It depends on the CA and the certificate license. To install the same certificate on multiple servers, first install the certificate files to the server where the CSR was originally generated. ... This way, your servers will each have a copy of the certificate with its private key installed on it.

How do I get rid of lets encrypt SSL?

You would need to go through at least the following directories and delete the files associated with the domain name.

1. /etc/letsencrypt/archive.
2. /etc/letsencrypt/live.
3. /etc/letsencrypt/renewal.

What's wrong with Letsencrypt?

Therefore, that's the major downside of using a Let's Encrypt certificate: a reduced compatibility compared to other older competitors. ... LE only issues domain- or DNS-validated certificates (they don't plan to issue OV or EV, hence they only validate ownership and not the entity requesting the certificate)

Why is Letsencrypt only 90 days?

We're sometimes asked why we only offer certificates with ninety-day lifetimes. ... From our perspective, there are two primary advantages to such short certificate lifetimes: They limit damage from key compromise and mis-issuance. Stolen keys and mis-issued certificates are valid for a shorter period of time.

What is the best free mail server?

Best Free Email Accounts

• Gmail.
• AOL.
• Outlook.
• Zoho.
• Mail.com.
• Yahoo! Mail.
• ProtonMail.
• iCloud Mail.

Does DigitalOcean block port 25?

DigitalOcean would not unblock port 25, so you will need to set up SMTP relay to bypass blocking, which can cost you additional money. If you use Vultr VPS, then port 25 is blocked by default.

Can I reuse my SSL certificate?

5 Answers. You can re-use your SSL certificate if you configure your DNS so that your test machine is the same domain name as server, which is probably a bad idea. ... If you use the certificate, it will correctly encrypt connections using SSL, but any client will get a certificate mis-match error.

Can I buy SSL for subdomain?

Yes, if you have only 2-3 subdomains, you can get a multi-domain SSL certificate. Here, you need to treat your subdomains as separate SAN.

Where is SSL certificate on server?

To view your certificates, under Certificates - Local Computer in the left pane, expand the directory for the type of certificate you want to view. To view certificates for the current user, open the command console, and then type certmgr. msc. The Certificate Manager tool for the current user appears.