Question: I need a solution that can handle unlimited email sending and integrates with popular email service providers.

If you're looking for a service that can handle unlimited email sends and integrates with major email service providers, Outboundly is another top contender. The AI-powered service automates and optimizes customer interactions at scale, with features like targeted email campaigns, automated sequences, unlimited email accounts, and deliverability management. It integrates with major email service providers and CRM systems, so it's a good choice for businesses of all sizes.

Another good option is Instantly, which offers a sales engagement and lead intelligence platform. It's got a network of more than 1 million real human accounts for email verification, bulk domain testing and a campaign builder. Instantly also offers unlimited email accounts and a range of pricing plans for different business sizes, so it's a good choice for agencies, recruiters and entrepreneurs.

Mails.ai is another service worth considering for an AI-powered cold email service. It offers unlimited email accounts with no extra fees and has features like email verification, AI-powered email writing, inbox rotation and campaign warmup. The service is designed to maximize deliverability and engagement, so it's a good option if you want to get the most out of your outreach campaigns and close deals as fast as possible.

If you want to personalize your approach, Nureply offers AI-powered cold email software with personalized email sequences, automated follow-ups and detailed analytics. It offers unlimited email accounts, email warmup and a range of pricing tiers for different business needs, so it's good for individuals, startups and large businesses.