Hello,
I have an CentOS 7.3 V-Server with Plesk Onyx 17.0.17.
At the moment I have the problem, that some mails from different domains, hosted on my sever, get big headers if they were sent.
I spent much on it, because emails remained in the queue. When I looked at the header of one email, the same DKIM signature was listed 315 times.
Because of that issue, the header becomes to big and some other email providers blocked that mails, because they allow only a header size of 64kb.
On my...
315 duplicate DKIM Signatures in one Email Header
I have an CentOS 7.3 V-Server with Plesk Onyx 17.0.17.
At the moment I have the problem, that some mails from different domains, hosted on my sever, get big headers if they were sent.
I spent much on it, because emails remained in the queue. When I looked at the header of one email, the same DKIM signature was listed 315 times.
Because of that issue, the header becomes to big and some other email providers blocked that mails, because they allow only a header size of 64kb.
On my...
315 duplicate DKIM Signatures in one Email Header