What email provider would you choose for a tiny SaaS?

For a tiny SaaS, I’d usually choose Google Workspace if I want the simplest, most reliable setup for a real business inbox, and Fastmail if I want a cleaner, cheaper, more privacy-focused alternative.

My default recommendation

Google Workspace

• Very reliable deliverability
• Easy to set up with your domain
• Great spam filtering
• Familiar UI and excellent mobile support
• Easy to add aliases, shared inboxes, and team mail later

If you want a lighter, nicer experience

Fastmail

• Excellent UX
• Strong support for custom domains and aliases
• Good deliverability
• Less “enterprise bloat” than Google
• Often a better fit for a one-person or tiny team SaaS

If you mainly need transactional email for the app

If you mean sending product emails like:

• signups
• password resets
• receipts
• notifications

then I would not use a mailbox provider for that. I’d use:

• Postmark for the best transactional email experience
• SendGrid or Mailgun if you need more flexibility or volume
• Amazon SES if cost matters most and you’re okay with more setup

Practical setup I’d pick

For a tiny SaaS, I’d often do:

• Google Workspace or Fastmail for human email like hello@, support@
• Postmark for app-generated transactional emails

That combo is simple and solid.

If you want, I can also give you a “best provider by budget” shortlist or a setup checklist for deliverability.