Expandi is a cloud platform that is designed to make automated LinkedIn outreach safe by using random delays, message frequencies, message limits, and much more.
LinkedIn automation has always been tough, and Expandi have a pretty unique approach. It's worth a try, but don't go overboard with the outreach as LinkedIn will probably pick up on it.
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!