Im using several subdomains and each one has an account. I need to be able to send mail from those accounts that have correct dkim. Ive enabled spf and dkim in whm. I've used this command to generate the key "openssl genrsa -out /etc/dkim.key 1024 && openssl rsa -in /etc/dkim.key -out /etc/dkim.pub -pubout"
Do I need to copy public key in every account's DNS zone individually?
I've always handled DKIM outside of our cPanel servers, with mail from cPanel being sent through an SSH tunnel to a private mail relay which signs the mail. Then I manually create the DNS records for the domains in WHM.
DomainKeys Identified Mail (DKIM) lets an organization take responsibility for a message while it is in transit and one can use this to prevent from getting blacklisted by the free email providers like Yahoo, MSN and Google. DKIM can increase the mail authenticity.
cPanel does not have an interface to enable DKIM like we have for SPF [...]
I'm running email sending campaigns with milions of emails, and I need to sign each and one of them with DKIM. Unfortunately that's the bottleneck of the process.
I wonder if I can calculate a DKIM signature ONCE and use it in all of the mails (maybe only signing the subject, that is common to the whole campaign).
Is that possible?
I am using Linode and have built a LAMP stack. I setup Google Apps (free edition) to handle all incoming mail. I've also setup Google Apps to use DKIM authentication. The problem is when my application sends mail (sign up verification, lost password, etc.) the email is not signed.
Set Up DKIM For Multiple Domains On Postfix With dkim-milter 2.8.x (CentOS 5.3)
This tutorial shows how you can sign your email messages by using DKIM (DomainKeys Identified Mail) for multiple domains. Signing email allows the recipient of a message to confirm a message originated with the sender's domain and that the message content has not been altered.
I have DKIM configured in Exim for outgoing mail, as per the documentation. Exim signs all outgoing mail. But some of that outgoing mail is forwarded, thanks to a users .forward file. This is a problem for me, because some of those messages are spam (my exim configuration does not do any verification) and I don't want to take responsibility for them.
I have a single domain with a dozen subdomains for different sites. Each has a separate virtual host in apache.
I configured sendmail to masquerad as the top-level domain so that emails are always from the top-level domain instead of the subdomain.
Unfortunately, DKIM header d= and i= fields show the subdomain.
as in the title I am struggling with the creation of the dkim key.
For key creation I use these commands
openssl genrsa -out s1024.private 1024
openssl rsa -in s1024.private -out s1024.public -pubout -outform PEM
In this way I got the public and private keys.
After that I put the private key in /etc/dkim/ dir
and I make the test about the key in this way
dkim-testkey -d hostname -s s1024 -
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