Thanks so much for the response This solved the DKIM issue from the MACBOOK as it indicated invalid character " and I found a double quote before the v=DKIM in the DNS TXT record and also one at the very end so deleted both. In the meantime if you can check the above on your site. There is one setting in Amavis which I changed as part of the DKIM setup, don't have the info to hand here, which I will advise when I post my setup. If you are using port 587 for email submission across the board then all email - for the domain you setup DKIM on, the mail domain setup on the mail service of your Server.app - should be being process via the same path. So back to your situation - can you check why/how different client machines are connecting differently to mail running on your OS X Server.app machine. I am using port 587 / SMTP Submission for client submission of email, on my firewall I have the external public DNS resolved address for MX at mapped to the server internal LAN address. I am using split-horizon DNS so for all devices/clients regardless of whether they are in the LAN or connecting remotely via the Internet they use DNS to resolve the (mail) server.Ĭlient email -> -> -> -> External Mail Forwarder -> Onwards delivery I don't know how you have your mail architecture setup but this is mine Īfter your last email, just for completeness, I ran a test of my iPhone connecting to my server from outside my local (home) LAN to send email. I was going to ask you about your email client and server setup because, fundamentally, once this is setup on the server it should be active for all accounts on the server, at the very least all accounts in the email domain (the one setup for DKIM, let's call it for the purposes of the discussion) unless an account was specifically excluded (if that's possible - I did a straight baseline setup so DKIM is active on my whole domain () and thereby all accounts having an email address of. I can post tutorial of how I did my setup if needed. Send an email to: and see what you get back. Here is the summary they send, this is result from my iPhone test. There is actually a site you can email to and they send you back a very detailed analysis email. I found website with information for setup of DKIM that I followed - with some slight changes - and it worked straight off.Īs you mentioned that you found a different result from an iOS device to a Mac I just tested my iPhone (had done with Mac during setup) and it came out fine. Previously was on Mavericks Server 3.x but did clean install. Hi - I've recently done setup of DKIM on my recently installed OS X 10.11.2 OS X Server 5.0.15 setup. Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\))Īny help would be greatly appreciated, thanks. Received: from (unknown )īy (Postfix) with ESMTPSA id E20431D5A6A6 Received: from ( )īy (Postfix) with ESMTPSA id C5D641D5A69C ZKEdLGm99Zy1Yj9c6swliTZ7MRyq4lZDUaxboZKoTvs9LCg63BsMQejgrQihsmS3īesides timestamp, sequence/CR,CR/LF and message related differences there are a few modified lines: (seem insignificant to me) ZwP8L5NkTgKtWKWrdRK8bBrcx90QV5 MkghM59IfHH5tD0M7OQ5Q9npCDj rp7R7 X-mailer:mime-version:date:date:message-id:subject:subject Header differences: (I do see that DKIM is still not working quite right but that should not be causing this discrepancy- place advise if you disagree)įollowing two lines are only in the macbook originated header:ĭKIM-Signature: v=1 a=rsa-sha256 c=relaxed/simple d= h= In short it only has the DKIM signature missing from iOS devices but only when originating from accounts that my server hosts. UNSIGNED example: (as seen on gmail account (gmailacc1) using OS X mail show headers) Signed Examples: (as seen on a gmail account (gmailacc1) using OS X mail show headers) I have narrowed it down to IOS originated messages, but only those from my own OS X Server 5 accounts. I have been testing out my new DKIM setup (many thanks to the kind folks at topic desk for the Implementing DomainKeys/DKIM on OS x 10.8.x Mountain Lion server.) and I see the DKIM signature on some messages and not on others when I receive my server's emails on gmail.
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