• Our team is looking to connect with folks who use email services provided by Plesk, or a premium service. If you'd like to be part of the discovery process and share your experiences, we invite you to complete this short screening survey. If your responses match the persona we are looking for, you'll receive a link to schedule a call at your convenience. We look forward to hearing from you!
  • We are looking for U.S.-based freelancer or agency working with SEO or WordPress for a quick 30-min interviews to gather feedback on XOVI, a successful German SEO tool we’re looking to launch in the U.S.
    If you qualify and participate, you’ll receive a $30 Amazon gift card as a thank-you. Please apply here. Thanks for helping shape a better SEO product for agencies!
  • The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Question How does Plesk Linux configure Postfix to generate the Authentication-Results header

TimReeves

TimReeves

Regular Pleskian
I've been having problems using PHPMailer with attachments and DKIM, receiving instances are saying the DKIM signature is invalid, the body has been modified (without attachments the dkim signature is valid). So I wanted to check out the differences in the canonicalisation algorithms, which is probably where the problem lies. But for the life of me I can't find out how Plesk configures Postfix to test DKIM signatures (or SPF) on incoming mail (come to that, nor how it generates the signature on outgoing mails).

I've found various articles explaining how to manually add openDKIM or various Milters (mail filters) to Postfix, but none of them refer to Plesk, and I have not found any of the elements which are described in those articles on my Plesk-managed servers.

Hence my question: How does Plesk Linux configure Postfix to generate the "Authentication-Results:" header?

Any hints at all much appreciated!

Thanks, Tim
 
You must log in or register to reply here.

Similar threads

HoracioS
Issue Plesk Forwarding & DKIM Authentication: How to Ensure Matching Signatures?
Replies
1
Views
792
Aslanj
A
E
Issue DKIM email control not valid
Replies
2
Views
915
Erwan
E
E
Issue Several understanding errors in my postfix
Replies
4
Views
6K
estanis
E
P
Question PHPMailer, DKIM, and Plesk
Replies
10
Views
3K
Andreas Lang
A
EnriqueR
Question Incoming mail is stored in Junk folder
Replies
6
Views
985
EnriqueR
EnriqueR
Back
Top