Compare Sendmail vs. WillItInbox

The Sentrion platform from sendmail is crafted for intricate and expansive environments, yet we also offer a portion of this solution as open-source. While Sentrion may not suit everyone’s needs, it is an excellent choice for those employing open-source email systems within large and complex infrastructures, as it can support your messaging strategy for the long term, encompassing aspects like virtualization, consolidation, and cloud migration. The Domain Keys Identified Mail (DKIM) standard plays a pivotal role in email security by allowing senders to digitally sign their messages, enabling recipients to verify that these messages are genuine and have not been tampered with. This sender authentication process ensures that recipients can trace the origin of an email back to the sender's domain, providing assurance regarding the integrity of the message content. Utilizing cryptography, DKIM offers a widely accepted solution for reducing email fraud, thereby safeguarding an organization's brand and reputation while keeping implementation costs manageable. With the increasing prevalence of email threats, adopting DKIM can be a crucial step in fortifying your email security framework.

WillItInbox serves as a comprehensive email deliverability and validation platform tailored for SaaS teams, developers, agencies, marketers, and newsletter managers who rely on sending outbound emails. Users can create a distinct test inbox, dispatch an actual message from their application or email service provider, and obtain an insightful deliverability report that encompasses various factors such as SPF, DKIM, DMARC, BIMI, DNS, reverse DNS, blocklists, TLS, headers, content, links, reputation, and sender infrastructure. Additionally, WillItInbox provides the capability to validate single emails and bulk CSV lists by assessing syntax, DNS/MX records, disposable addresses, role-based emails, typos, providers, catch-all accounts, SMTP connections, suppression lists, and confidence signals. The platform also features domain monitoring, analysis of DMARC reports, visibility into sending sources, reputation checks for providers, API key integration, webhooks, scheduled monitoring, incident diagnostics, inbox placement assessments, collaboration through team workspaces, and the option to export reports. Subscription plans begin at $39 per month, and pay-as-you-go credits are offered for those needing additional email validation and deliverability testing services. This extensive suite of tools ensures users can effectively manage and enhance their email communication strategies.