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how_to:signing_outgoing_mail_with_dkim [2015/12/04 09:28] – paul | how_to:signing_outgoing_mail_with_dkim [2020/07/22 10:32] (current) – paul | ||
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To be able to do this yourself, you need to have access to the DNS server for your domain. This might be your own DNS server, or one provided by your domain registry. | To be able to do this yourself, you need to have access to the DNS server for your domain. This might be your own DNS server, or one provided by your domain registry. | ||
- | Now you need to generate a public key to put into a TXT record for your domain. To do this, search for a DKIM key generator, like [[http://dkimcore.org]], and enter the domain | + | Now you need to generate a public key / private key pair to sign & verify |
- | On the DNS server, create a new TXT record, with a host name of the < | + | On the DNS server, create a new TXT record, with a host name of the < |
- | Now you need to sort out the private key. Copy the private key (including the BEGIN/END lines) and paste it into a text editor, like notepad. This document needs to be saved into the VPOP3 directory, as a file called **domainkey_< | + | Now you need to sort out the private key. Copy the private key (including the BEGIN/END lines) and paste it into a text editor, like notepad. This document needs to be saved into the VPOP3 directory, as a file called **domainkey_< |
Now go onto VPOP3 and click the **Services** tab, and **SMTP Server**, then click the **spam reduction** tab. Once there, change the **DKIM Signing** box to **All Local Senders**, and add the selector to the **DKIM Selector** box. Then click Submit. | Now go onto VPOP3 and click the **Services** tab, and **SMTP Server**, then click the **spam reduction** tab. Once there, change the **DKIM Signing** box to **All Local Senders**, and add the selector to the **DKIM Selector** box. Then click Submit. | ||
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Now, when you send a message through your VPOP3 server from the appropriate domain, VPOP3 will generate a DKIM signature for the message. | Now, when you send a message through your VPOP3 server from the appropriate domain, VPOP3 will generate a DKIM signature for the message. | ||
+ | ====Multiple domains==== | ||
If you can send mail from several different domains, just have several different domainkey_.....key files in the VPOP3 directory and VPOP3 will choose between them as appropriate. If there isn't a domainkey_.....key file for a particular sender, then VPOP3 will not generate a DKIM signature for that message. | If you can send mail from several different domains, just have several different domainkey_.....key files in the VPOP3 directory and VPOP3 will choose between them as appropriate. If there isn't a domainkey_.....key file for a particular sender, then VPOP3 will not generate a DKIM signature for that message. | ||
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+ | Note that the // |