Another option is Mailforge, which lets you quickly set up hundreds or thousands of domains and mailboxes with premium deliverability built in at no extra cost. That can be a good option for businesses that need a lot of email infrastructure, but it's also good for sales and marketing teams that need to send a lot of emails.
If you're looking for a tool to help you get more out of your email, check out Superhuman. It's got a split inbox, AI-powered writing to help draft emails, follow-up reminders and read status to see when recipients have opened messages. It integrates with Gmail and Outlook and offers a variety of pricing tiers, so it's a good option for teams that want to get more out of their email.
Last, Instantly is a sales engagement and lead intelligence platform. It automates outreach, has a deliverability network, and has a full featured CRM to help you close deals faster. It can send thousands of emails a day without hurting sender reputation, so it's good for agencies, recruiters and entrepreneurs who want to get the most out of their email outreach and improve sales conversion rates.