I have never understood what causes messages to either go, or not go, into the same conversation. Aside from the subject line, it seems to (randomly?) depend on something else.
Someone once hinted that there is a line or a value in the (normally hidden) headers that also controls it, like a message ID. Obviously you can't change that once the message is received. But if you can control it when the message is sent, it might help. If we knew what it was. Andy -- You received this message because you are subscribed to the Google Groups "Gmail-Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/gmail-users. For more options, visit https://groups.google.com/d/optout.
