# Fw: multiple ssl certificates for multiple domains but just one IP

**URL:** <https://www.ruby-forum.com/t/fw-multiple-ssl-certificates-for-multiple-domains-but-just-one-ip/202684>\
**Category:** NGINX\
**Created:** [February 3, 2011, 5:19pm UTC](https://www.ruby-forum.com/t/fw-multiple-ssl-certificates-for-multiple-domains-but-just-one-ip/202684 "2011-02-03T17:19:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [February 3, 2011, 5:19pm UTC](https://www.ruby-forum.com/t/fw-multiple-ssl-certificates-for-multiple-domains-but-just-one-ip/202684/1 "2011-02-03T17:19:57Z")

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The following must be interesting to Nginx main developers:

---------- Forwarded message ----------  
Date: Thu, 3 Feb 2011 10:30:33 -0500 (EST)  
From: Wietse V. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
To: Postfix users [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
Subject: Re: multiple ssl certificates for multiple domains but just  
one IP

---------- message body----------  
Alokat:

> Hi,
> 
> I have a server which accepts eMails for multiple Domains.  
> And I wanna provide for each Domain a SSL certificate.
> 
> How can I use SNI (Server Name Indication) with postfix or is there  
> another way to solve this problem?

This is not yet implemented in Postfix. One option is to use nginx  
as a proxy. It supports multiple SSL and non-SSL server names on  
one IP address ([Module ngx\_http\_ssl\_module](http://wiki.nginx.org/HttpSslModule)).

Wietse

---

<div class="post-metadata">

**Author:** ![larios](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/bc79bd/32.png) [@larios](https://www.ruby-forum.com/u/larios)\
**Post date:** [February 3, 2011, 5:49pm UTC](https://www.ruby-forum.com/t/fw-multiple-ssl-certificates-for-multiple-domains-but-just-one-ip/202684/2 "2011-02-03T17:49:31Z")

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Hello!

On Thu, Feb 03, 2011 at 04:18:08PM +0000, Mark A. wrote:

> Alokat:  
> one IP address ([GitHub - nginxinc/nginx-wiki: ARCHIVED -- Source for the now archived NGINX Wiki section of https://www.nginx.com · GitHub](http://wiki.nginx.org/HttpSslModule)).
> 
> Wietse

This won’t work, nginx doesn’t support SNI for SMTP as well as  
Postfix. Additionally, I’m not sure if there are mail clients  
which support SNI.

Maxim D.