Forgive the noob question, but up until yesterday I didn't even know what a DKIM was.
We are using Windows Server 2008 R2 and mailEnable 5.51 Standard Edition as an out going only SMTP. This is only used by JMail form to email traffic.
I'm trying to cut down on the amount out outgoing emails being classed as spam by customers email clients or by people like gmail, hotmail, AOL etc.
I was advised to consider setting up DKIM and pointed in the direction of https://www.socketlabs.com/domainkey-dkim-generation-wizard/ to generate a key.
For example, for domain : somedomain.com, selector : key1
Which give me the following:
Name Value
_domainkey.somedomain.com t=y;o=~;
key1._domainkey.somedomain.com k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAzmaNvSCwQX+jO/9SmZyA7Eg3W269ZqIdPxV1su9vXvN5Wac1gZpEpogS9CPe5TeWtTx/yph2niB88NuDOx0wX54529XLiRxanc6gZDMsE6+p+DYqpNV2Hi4VPusWl9zlrLo5ySfSLE7sKmzqKx1JCOBJ7sWzY/i0+dc4Bfq9VwIDAQAB
This bit I'm ok with, and understand about adding the TXT records to the domains DNS.
The problem I'm having is what to do with the private key.
I understand mailEnable does support DKIM but you have to upgrade to a newer Enterprise Edition, which we are not in the market for at the moment.
But, because I convert the forms to email myself using classic .asp (VB.Script) and construct the emails using JMail can't I use something like:
AddHeader('key', 'value')
To manually create the private DKIM header needed to complete the system? If so, how do I go from the data in the private key to the DKIM headers required in the emails header?