Alan B.
Their time estimates are inaccurate
Their time estimates are way too optimistic for large lists. For example, their estimate to validate a 50,000 contact list was 2 days, and a week later it was only 70% completed. We contacted their support phone number which they list on their receipts, but that number isn't staffed (according to them). We then paid extra for a speed boost, and out list finally processed. We do not recommend this service.
Response from Bulk Email CheckerJun 18, 2026
Thanks for the feedback. A 50,000 list taking a week long to process is definitely unexpected. Also, it's worth explaining what drives our time estimate and actual final processing times. Processing speed depends on how quickly each destination mail server responds, and that varies a lot from list to list. The time estimate is based on average response times, so a list weighted toward slow or rate-limiting mail servers can run well past the estimate. That's the kind of thing we'd want to look at on your specific job. On support: we're a cloud-based, self-serve platform, so we don't maintain a phone support line. Everything goes through our ticket system, which usually responds within a few hours on business days. If you saw a phone number on a receipt, it was not a staffed support line. On the speed boost: standard processing always completes on its own at no extra cost. The faster option is optional and never required to finish a job. If you want us to look at what slowed that list, reach us at [email protected]. We also followed up through Trustpilot's request-for-information button and didn't hear back.