1
vote
1answer
144 views

Can Subject Alternative Name accommodate multiple virtual mail domains?

I am currently running a postfix server with self signed certificates serving one mail domain, mycompany.com, the mail server is mail.mycompany.com and so is the CN of the certificate. Now, I need to ...
0
votes
2answers
271 views

SendMail TLS Certificate - Can it be shared for different hosts?

CentOS 5 | SendMail Can TLS certificates be shared between multiple sendmail MTAs? I'm using a CA-signed cert and would prefer to not purchase new certs for each additional sendmail host. -M
13
votes
1answer
10k views

How to inspect remote SMTP server's TLS certificate?

We have an Exchange 2007 server running on Windows Server 2008. Our client uses another vendor's mail server. Their security policies require us to use enforced TLS. This was working fine until ...
8
votes
5answers
4k views

Do any well-known CAs issue Elliptic Curve certificates?

Background I've seen that Comodo has an elliptic curve root ("COMODO ECC Certification Authority"), but I don't see mention of EC certificates on their web site. Does Certicom have intellectual ...
1
vote
1answer
144 views

Can I get a CA-signed SSL cert for a host accessed by IP address?

I have a server which is accessed by IP address over a LAN. The IP address is sometimes changed, and it is never accessed with a DNS hostname. Is it possible to get a CA-signed certificate which ...
1
vote
2answers
210 views

Modifying SSL / TLS certificates for local use

I am currently developing some applications on my local 'serverfarm'. I have set up ZendServer with Apache2 and PHP, which works very fine, and nothing unwanted happened until now: Now I wanted to ...