I have several Zend_Mail_Message objects that I got from an IMAP query.
Now I want to serialize each message individually.
However, it seems that a simple:
serialize($message);
doesn’t work because the message has attachments (multipart), and the parts don’t get serialized.
So, how to serialize a complete Zend_Mail_Message object, including parts (attachements)?
I figured it out. Basically Zend_Mail_Message has cache mechanism, so when you get a part from the message it doesn’t ask the IMAP server again for that part.
So the key was to warm up the cache before serializing: