I want to migrate from Outlook 2007 to webmail. I have custom code running on outlook that accesses contacts and contacts custom fields and makes changes to incoming and outgoing email header fields.
I want to replicate this functionality using a webmail solution (e.g. gmail), but from my initial examination, it doesn't appear that gmail api allows such customization, correct?
Looking for thoughts on how to proceed from you knowledgeable webmail gurus!