mail tracking pixel link issue
Describe the bug
I got a email tracking from postal server, but the pixel link lacks a H.

Judging by the original line of code https://github.com/postalserver/postal/blob/6f1d92b974517ed37e3f7caface84ec6ddf08808/lib/postal/message_parser.rb#L134
It seems there are several characters missing and the quotes are quite messed up.
How are you generating the email?
We send test mail from pc with PowerShell command to postal server, and SMTP server point to postal server.
PS: Our desired architecture is: exchange --> postal --> Outgoing/Incoming mail .
Presuming you are both working together, Postal really is not designed for this arrangement so I'm not sure you'll be able to achieve everything working perfectly. There are known issues with using click tracking and SMTP so I think you have a few problems here.