Some hidden Thunderbird Preferences to Controll Threading

clipped from: https://wiki.mozilla.org/MailNews:Message_Threading

I wish Thunderbird Threading behaviours was easier to set but it is not, you need to use below variables to do so...

All core threading logic currently lives in mailnews/db/msgdb/src/nsMsgDatabase.cpp. It is controlled by the following preferences:

• mail.thread_without_re : Thread by subject even when there is no "Re:" in the subject; default False in 3.0, used to be true in 2.0.
• mail.strict_threading : Don't thread by subject; default True for 3.0, used to be False in 2.0.
• mail.correct_threading : Thread things correctly (using References/In-Reply-To) regardless of the order in which messages are added to a folder; default false. Requires extra memory and some extra processing once a folder (nsMsgDatabase) has new messages added to it. If you turn this on, you really should turn on strict_threading too.

mail.thread_without_re

mail.thread_without_re (gThreadWithoutRe/ThreadBySubjectWithoutRe) defaults to False in Thunderbird 3.0, used to default to True in 2.0.

If mail.thread_without_re is True, the subject does not have to start with "Re:" (or variants or localized variants) for threading to occur. If it's false, it does have to start with "Re:"/variants.

mail.strict_threading

mail.strict_threading (gStrictThreading/UseStrictThreading) defaults to True in 3.0, used to be False in 2.0.

If mail.strict_threading is True, subject-threading is disabled entirely. Messages sent by clients that do not generate "References"/"In-Reply-To" headers (or responding to clients that do not generate "Message-ID" headers) will not be threaded.

If mail.strict_threading is False, then we will attempt to thread using the subject. Whether we require the subject to start with "Re:" (or variants) depends on the "mail.thread_without_re" setting.

mail.correct_threading

mail.correct_threading (gCorrectThreading/UseCorrectThreading) defaults to True in 3.0. Implemented by bug 181446, only available in 3.0 releases and later (never on the 2.0.0.x branch).

If mail.correct_threading is True, the references stored on every nsIMsgDBHdr are used to populate a hashtable mapping every Message-ID we have heard about for a thread to that thread's thread id. For example, if message D with Message-ID: D and thread id of 42 "References:" C, B, and A, the hashtable will map C, B, and A to 42.

Having this mapping allows us to do two things we could not otherwise do (as things are implemented...) in order to thread messages correctly regardless of the order in which they are added:

• Thread messages together with common, but missing (not in the folder), ancestors. Otherwise, they would end up in different threads.
• When we process one of those missing ancestors, detect it and properly add the message to the existing thread. (At least as long as there are less than 1000 messages in the thread.)

The hashtable is an in-memory-only structure, and is populated by processing all of the existing messages the first time access to the structure is required. This means that the overhead of traversing the messages and extra memory usage should only happen when adding new messages to an nsMsgDatabase.

nsParseMailbox.cpp sets the references via nsIMsgDBHdr::SetReferences using the "References" header as a first choice, and the "In-Reply-To" header as a second choice. (nsNNTPNewsgroupList.cpp and various compose pieces of functionality also call SetReferences, but they are not processing incoming e-mail.)

Doing TO DOs with Toodledo on Thunderbird (+Lighting ?)

How I integrated my preferred Mail, Calendar and Todos tools.

I use Thunderbird as my email client and Lightning for integration with my company calendar and other personal calendars as needed but was missing a connection with for my TO DOs since I like using Toodledo (toodledo.com). To me Toodledo is the best free ToDo (GTD - Get Things Done) personal management tool out there. I tried the to use the Lightning extension to connect directly to Toodledo by following some simple instructions but for some reason it did not work. So at the end, I used another Thunderbird Extension (WAT:WebApplicationTab ) and simply opened Toodledo as a web page on Thunderbird. It works really well! Look!

To integrate Lightning to Toodledo you may try doing this:
on Toodledo
1) log in
2) In "Tools & Services" click in calendars "Configure"
3) Enable Calendar Suscriptions
4) Use the links offered as urls to be used in Lightinig


Now, on Lightining
1) Create a new calendar (right click on calendar area)
2) Select On Network



 3) Seletct ICS calendar and use the Toodledo url as location









4) Give it a name (and cross your fingers)


In my case , this did not work but the reason could be I am inside a company firewall. Good luck for you!