Mixmax is genuinely good at the Gmail-only sequence-driven sales motion. It's also priced as a premium engagement platform ($29 SMB to $89 Enterprise per user per month yearly), Gmail-only at every tier, and has no roadmap signal toward Outlook. Teams typically search for alternatives when the per-seat math becomes hard to justify or when adding an Outlook rep forces a re-platform decision.
These are the six Mixmax alternatives worth evaluating, ordered by the trade-offs Mixmax-leaving teams most often cite: covering Outlook + Gmail in one tool, getting confidence-scored opens, lowering the per-seat cost, and keeping the cadence-and-engagement features that made Mixmax appealing in the first place.