How do I receive email sent to postmaster?

Posted by jonescb on Server Fault See other posts from Server Fault or by jonescb
Published on 2011-03-12T23:18:51Z Indexed on 2011/03/13 0:12 UTC
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Filed under:

ssl-certificate

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sendmail

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verification

I have a VPS server that I would like to get an SSL certificate for, and the CA needs an email address to verify that I own the domain. The options are: [email protected], [email protected], [email protected], and an address to @whoisguard.com.

The server runs CentOS 5, and all I have set up for email is sendmail. I don't have POP3 or IMAP. According to this Wikipedia article on Postmaster, it says that all SMTP servers support postmaster and it cites RFC 5321. Does sendmail conform to this? I tried sending a test mail to [email protected], but I don't know how to receive it on my server. Do I need to open up any ports?

I haven't gotten a message back saying that my test mail failed to send, so my server must have gotten it.

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