SendBridge is an email verification and email list cleaning service. It officially states that its goal is to ensure a 99% deliverability rate, helping users reach more inboxes, protect sender reputation, and reduce bounce rates.
[Purpose] Keep email lists clean through email verification services, removing invalid, risky, or misspelled email addresses, thereby reducing email bounce probability, protecting sender reputation, and ensuring important emails reach customers' inboxes rather than spam folders. The official statement points out that sending emails to fake, invalid, or spammy addresses will increase bounce rates, lower click-through rates, and damage the deliverability of future emails.
[Main Capabilities]
- Email verification: quickly flag invalid or undeliverable email addresses and identify risk types such as spam traps, role accounts, catch-all servers, and disposable addresses.
- Result classification: the verification result for each email address is categorized as deliverable, undeliverable, risky, or unknown.
- List cleaning: users can upload email lists in the customer area, download the results after verification is complete, and use them to optimize email marketing campaigns and cold email outreach.
- Real-time integration: can integrate a real-time email verifier with popular programming languages such as Go, Java, PHP, Python, and .NET.
- File formats: cleaned email lists can be downloaded in Excel XLSX, CSV, or TXT format, and maintain the same order as when uploaded, making it easy to import into other systems.
[How to Use]
- A free account can check up to 100 email addresses per month; for more quota, users need to check the pricing page (specific prices are not yet provided).
- Upload an email list in the customer area, and download the results after verification is complete.
- Can be integrated via API into projects using languages such as Go, Java, PHP, Python, and .NET to achieve real-time verification.
[Additional Tools] The official Mail-Tester alternative tool is provided: get the same 0–100 deliverability score, SPF / DKIM / DMARC analysis, and blacklist checks, with unlimited uses, free, and no account required. You can see the specific issues affecting inbox delivery within 30 seconds. Its features include: unlimited tests, no daily limit, and no email required; Rspamd-based deliverability score (0–100) with actionable fix suggestions; coverage of 23+ blacklists, rDNS, content, and authentication analysis (SPF, DKIM, DMARC).
[Applicable Scenarios] Scenarios such as email marketing and cold email outreach that require maintaining a clean email list, improving deliverability, and protecting sender reputation. The official website also provides articles and resources about email verification and email deliverability.
[Limitations and Information Not Yet Provided]
- A free account is limited to 100 verifications per month; specific prices and plan details for higher quotas are not yet provided.
- Details such as the specific endpoints, authentication methods, and billing methods of the real-time verification API are not yet provided.
- The official claim is 99% accuracy; actual results may vary depending on the data.
