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- <h1>Advanced Setup of hMailServer E-Mail Server Create and Apply SSL Cert</h1>
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- <h2>Prerequisites</h2>
- <ul>
- <li class="noCheckbox">A XCA PKI database <a href="https://youtu.be/ezzj3x207lQ" target="_blank">https://youtu.be/ezzj3x207lQ</a></li>
- </ul>
- <h2>Create Your SSL Certificate</h2>
- <ol>
- <li>Launch XCA</li>
- <li>Open the PKI database if it is not already (File > Open DataBase), enter password</li>
- <li>Click on the Certificates tab, right click on your Intermediate CA certificate</li>
- <li>Select New</li>
- <li>On the Source tab, make sure Use this Certificate for signing is selected</li>
- <li>Verify your Intermediate CA certificate is selected from the drop down</li>
- <li>Click the Subject tab</li>
- <li>Complete the Distinguished Name section
- <p>internalName: Email Server SSL<br />
- countryName: US<br />
- stateOrProvinceName: Virginia<br />
- localityName: Northern<br />
- organizationName: i12bretro<br />
- organizationUnitName: i12bretro Certificate Authority<br />
- commonName: smtp.i12bretro.local</p>
- </li>
- <li>Click the Generate a New Key button</li>
- <li>Enter a name and set the key size to at least 2048</li>
- <li>Click Create</li>
- <li>Click on the Extensions tab</li>
- <li>Select End Entity from the type list</li>
- <li>Click Edit next to Subject Alternative Name</li>
- <li>Add any DNS or IP addresses that the certificate will identify
- <p>smtp.domain<br />
- imap.domain<br />
- pop3.domain</p>
- </li>
- <li>Update the validity dates to fit your needs</li>
- <li>Click the Key Usage tab</li>
- <li>Under Key Usage select Digital Signature, Key Encipherment</li>
- <li>Under Extended Key Usage select Web Server Authentication</li>
- <li>Click the Netscape tab</li>
- <li>Select SSL Server</li>
- <li>Click OK to create the certificate</li>
- </ol>
- <h2>Exporting Required Files</h2>
- <ol>
- <li>In XCA, click on the Certificates tab</li>
- <li>Right click the SSL certificate > Export > File</li>
- <li>Set the file name with a .crt extension and verify the export format is PEM (*.crt)</li>
- <li>Click OK</li>
- <li>Click the Private Keys tab</li>
- <li>Right click the private key generated for the SSL certificate > Export > File</li>
- <li>Set the file name with a .key extension and verify the export format is PEM private (*.pem)</li>
- <li>Click OK</li>
- </ol>
- <h2>Setting Up SSL in hMailServer</h2>
- <ol>
- <li>Launch hMailServer Administrator</li>
- <li>Select localhost > Click Connect > Login with the administrative password</li>
- <li>Expand Settings > Advanced > SSL Certificates > Click Add...</li>
- <li>Give the certificate a friendly name</li>
- <li>Browse to the certificate and key files exported earlier
- <p>NOTE: The .crt and .key files need to stay on the file system to be read by hMailServer. I place them in the hMailServer installation directory in a real world scenario</p>
- <ul>
- </ul>
- </li>
- <li>Click Save</li>
- <li>Expand Settings > Advanced > IP Ranges</li>
- <li>Select the LAN IP Range created previously</li>
- <li>Check the Require SSL/TLS for authentication box</li>
- <li>Click Save</li>
- <li>Expand Settings > Advanced > TCP/IP Ports</li>
- <li>Click on 0.0.0.0 / 25 / SMTP</li>
- <li>Update the port to 465, Select SSL/TLS from the Connection Security dropdown, Select the SSL certificate imported previously</li>
- <li>Click Save</li>
- <li>Click No to the popup to restart the service</li>
- <li>Click on 0.0.0.0 / 143 / IMAP</li>
- <li>Update the port to 993, Select SSL/TLS from the Connection Security dropdown, Select the SSL certificate imported previously</li>
- <li>Click Save</li>
- <li>Click Yesto the popup to restart the service</li>
- </ol>
- <h2>Setting Up SSL in the Client</h2>
- <ol>
- <li>Launch Thunderbird</li>
- <li>Right click on the e-mail address setup previously > Settings > Server Settings</li>
- <li>Set Connection security to SSL/TLS</li>
- <li>Verify the port updated to 993</li>
- <li>Click Outgoing Server (SMTP)</li>
- <li>Set Connection security to SSL/TLS</li>
- <li>Verify the port updated to 465</li>
- <li>Click OK</li>
- <li>Click OK</li>
- <li>Click Tools > Options > Advanced > Security > Manage Certificates</li>
- <li>Click Import...</li>
- <li>Browse to the CA-chain.pem file exported earlier</li>
- <li>Click OK</li>
- </ol>
- <h2>Testing Your New E-Mail Server</h2>
- <ol>
- <li>In hMailServer Administrator, Expand Utilities > Server sendout</li>
- <li>Select Specific domain and select the domain created earlier from the dropdown</li>
- <li>Fill out the form to send a test e-mail > Click Send</li>
- <li>Back in Thunderbird, click the Get Messages button</li>
- <li>The test email should arrive in the inbox</li>
- </ol> </div>
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