Verifying email performance is more than the basic understanding of message flow. Outbound mail in the form of Simple Mail Transfer Protocol (SMTP) and inbound mail through MAPI or Microsoft's Graph API only parts of email systems to monitor, usually through pings or basic delivery confirmations. Often, once email is moved to Exchange Online, even basic visibility of mail flow and reliable delivery is lost. Many subsystems go into efficient email deliverability, especially once multiple email hygiene providers are added to the mix.

At Magenizr, we're always looking for tools to make life easier for developers and merchants. Not too long ago, we found ourselves in a bind. We were scouring the Adobe Commerce Marketplace and Github repositories for an error monitoring app tailored for e-commerce shops but came up empty-handed. New Relic was overkill for shops that just needed to pinpoint where errors were cropping up.