SmartReach.io is a Email Outreach Software designed to let users schedule and send personalised emails and follow-ups automatically from their mailbox and boost their reply rates.
It's straightforward, only has what you need and does not over complicate things. We use it for our own outreach so can definitely vouch for it!
PersistIQ gives you the sales automation platform and outbound sales team to help small businesses set up their own outbound sales engine to get new clients.
If your budget is tight we'd recommend this tool. It's relatively cheap and still does the core job of email automation. Although we wouldn't recommend running large volumes through it. They also have a decent "email finder" Chrome extension.