Mailtester.com vs. OrbiSearch
A side-by-side comparison based on G2 review data.
| Metric | Mailtester.com | OrbiSearch |
|---|---|---|
| Overall rating | 4.2 | 4.8 |
| Review count | 10 | 13 |
| Ease of use | 8.8 | 9.5 |
| Ease of setup | 8.6 | 9.4 |
| Quality of support | 8.4 | 8.8 |
| Meets requirements | 8.4 | 9.5 |
| NPS | 50 | 92.307692 |
| Small Business | 60.0% | 92.3% |
| Mid-Market | 30.0% | 7.7% |
| Enterprise | 10.0% | 0.0% |
| Total page views | 100 | 113 |
| Total LLM citations | 459 | 11 |
Mailtester.com
Check if an e-mail address is valid or not. Our email list checker will lookup and check emails to see if they are valid. We have Mailchimp omnivore checker and other integrations like MailChimp, Activecampaign
OrbiSearch
OrbiSearch is an email validation tool that specialises in catch-all (accept-all) domain resolution. It verifies whether individual email addresses or bulk lists are deliverable before outreach, helping users reduce hard bounce rates and protect sender reputation. Core functionality: OrbiSearch uses a two-layer verification process. The first layer performs standard SMTP validation — checking email syntax, domain existence, MX records, and basic mailbox reachability.