Email Deliverability Testing Tools

Email Deliverability Testing Tools

Email deliverability testing tools help administrators and senders evaluate inbox placement, diagnose configuration errors, and troubleshoot routing issues across various platforms. These utilities range from spam-scoring websites to administrative toolboxes designed to verify technical records and analyze message headers.

Spam Testing and Inbox Placement

Mail-tester.com provides free email deliverability essentials to test the spammyness of newsletters by having users send an email to a provided address [1]. MailReach offers a free email spam test and checker tool designed to monitor inbox placement and lower spam rates, allowing up to 3 tests per 24 hours [2]. To use MailReach, users must insert a provided code anywhere inside the body of their email, send the email to a list of provided inboxes, and click 'Get your score' to view the report [2].

MailReach checks email content, DNS records, and blacklists across multiple mailboxes to provide an unbiased spam score and actionable recommendations [2]. Specifically, MailReach checks SPF, DKIM, DMARC records, blacklists, links, HTML complexity, and spam words [2]. MailReach customers experience an average reply rate growth of 137% and an average revenue growth from email of 19% [2].

Authentication and DNS Verification

Mail-tester.com offers free checkers and generators for DMARC, DKIM, SPF, and BIMI [1]. The Google Admin Toolbox provides utilities to help administrators troubleshoot Google Workspace services, including verifying DNS records [3]. Within the Google Admin Toolbox, Check MX validates DNS records to detect common MX record misconfigurations [3].

Troubleshooting and Log Analysis

The Google Admin Toolbox includes several utilities for investigating mail delivery and browser issues [3]. Messageheader analyzes SMTP message headers to identify delivery delays, misconfigured servers, and mail-routing problems [3]. Log Analyzer enables the analysis of log files generated by Google products like Chrome and Google Workspace Sync for Microsoft Outlook [3]. Additionally, Browserinfo captures client-side information to help identify factors impacting the user experience [3].

What is not covered

Pricing tiers beyond the free offerings, API integration capabilities, and specific blacklist providers checked by MailReach are not covered in the sources.