I'm using thunderbird release 17.0.6 which I nedd to interface to MS Exchange 2010. I started the migration to Exchange departing from a mail system based on MDaemon. At this scope I'm using DavMail release 4.3.2 build 2138. Installed with Thunderbird is a custom plugin through which I intend to transport with the message a personal message header set valued through the thunderbird message compose form.
When I received the message created with thunderbird in Exchange, these further headers set disappear!!
Using DavMail with thunderbird the custom headers are forbidden or prohibited or skipped?
It's important to know this answer before to proceed into development of my solution.
Thanks in advance
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