email servers on VPS

[hochmand]

I currently buy a reseller account from Hostgator and maintain several distinct domains underneath it.

If I upgrade to VPS and buy dedicated IPs for all my domains - will I also be able to buy from Hostgator certificates such that attempt to read email from a secure port like 993 verifies a match between the domain and my VPS mail server?

The reason I care about this is that in a reseller environment, which is really just a shared server with shared email transport, the mismatch between the mail server's IP address and the lookup on my domain names causes an error message in Apple mail.app that I'd like to avoid.

If this query is poorly stated my apologies - let me know how to sharpen it. Thank you in advance for any advice.

[wyredwing]

I may be way off here, but ill try to answer this.

If your domain is www.123.com your mail server will remain to be mail.123.com regardless a shared reseller or VPS.

[quietFinn]

Originally Posted by hochmand

If I upgrade to VPS and buy dedicated IPs for all my domains - will I also be able to buy from Hostgator certificates such that attempt to read email from a secure port like 993 verifies a match between the domain and my VPS mail server?

You better contact HG support to get an official answer... but as far as I know in cPanel environment you can install cervices certificates in only one IP address (the main shared IP).

Originally Posted by hochmand

The reason I care about this is that in a reseller environment, which is really just a shared server with shared email transport, the mismatch between the mail server's IP address and the lookup on my domain names causes an error message in Apple mail.app that I'd like to avoid.

When you give an account (domain) a dedicated IP, you can ask HG support to set the reverse dns of that IP to match the domain.

[tletourneau]

You can do the certificate setup yourself on a VPS for each domain that you have a dedicated IP for. Here is a rough overview of the process. When you setup the account you purchase the additional IP's, once the account is setup and the domains are added you go to WHM -> IP Functions -> Change Site's IP Address and select the domain and click change then assign it one of the available addresses. You'd then go to WHM -> SSL/TLS -> Generate a SSL Certificate and Signing Request to generate the CSR. Once you have the cert from the CSR file you'd go to WHM -> SSL/TLS -> Install a SSL Certificate and Setup the Domain to install the cert.

[quietFinn]

Originally Posted by tletourneau

You can do the certificate setup yourself on a VPS for each domain that you have a dedicated IP for. Here is a rough overview of the process. When you setup the account you purchase the additional IP's, once the account is setup and the domains are added you go to WHM -> IP Functions -> Change Site's IP Address and select the domain and click change then assign it one of the available addresses. You'd then go to WHM -> SSL/TLS -> Generate a SSL Certificate and Signing Request to generate the CSR. Once you have the cert from the CSR file you'd go to WHM -> SSL/TLS -> Install a SSL Certificate and Setup the Domain to install the cert.

Yes, that installs certificate in the https port (443), but it does not work for any other services.

[GatorDaveC]

Originally Posted by hochmand

I currently buy a reseller account from Hostgator and maintain several distinct domains underneath it.

If I upgrade to VPS and buy dedicated IPs for all my domains - will I also be able to buy from Hostgator certificates such that attempt to read email from a secure port like 993 verifies a match between the domain and my VPS mail server?

The reason I care about this is that in a reseller environment, which is really just a shared server with shared email transport, the mismatch between the mail server's IP address and the lookup on my domain names causes an error message in Apple mail.app that I'd like to avoid.

If this query is poorly stated my apologies - let me know how to sharpen it. Thank you in advance for any advice.

Yes you would be able to configure your VPS to use an SSL on mail ports that match your domain name. Please remember that if you are using mail.yourdomain.com, and the SSL is for yourdomain.com.. It will still be a mismatch.

Please make sure that when you connect to your mail server, its using the same name in the purchased SSL.

If you purchase a VPS, I'm sure someone can give you a hand with that.