Seeking CRM that will scan emails/linkedin/etc and automatically add to CRM database

I'm a founder of an early startup, and am conducting customer discovery and market validation. I was hoping hubspot was capable of scanning my emails/linkedin messages/etc and automatically adding these messages to the CRM database. However, it seems that hubspot requires one to use an email client for which they have a plugin (i don't use any of their supported clients). Are there any CRM solutions out there that will do what I want, without breaking the bank (i.e. no more than, say, $15/month). Thanks in advance…