MailCull blog: field notes on email deliverability and list quality
How to Check if a Domain Is Catch-All
Why catch-all domains defeat naive verification, and how to detect them honestly.
How to Detect Disposable Email Addresses
Why disposable addresses fool naive validation, and how to catch them before they pollute your list.
How to Verify an Email Address
The few ways to verify an address, what each proves, and where to go deeper.
The AI read: a plain-English second opinion on every verdict
Every MailCull verdict is deterministic. But when you want the why in plain English, the AI read explains the same signals and tells you what to do next, without ever overriding the engine.
Free Clearout Alternative: MailCull explained
If you are evaluating Clearout but want either a flat price or the per-check SMTP receipts they do not surface, here is what MailCull does differently.
Free ZeroBounce Alternative: MailCull explained
If you are searching for a ZeroBounce alternative, you are probably hitting credit math, opaque verdicts, or bundle creep. Here is what MailCull does differently: 98% real-world accuracy, a recurring free tier, and the full evidence chain on every verdict.
Free NeverBounce Alternative: MailCull explained
If you are searching for a NeverBounce alternative, you probably want either a lower price or the SMTP receipts NeverBounce does not show. MailCull is built for both.
Free Bouncer Alternative: MailCull explained
If you respect Bouncer but want either a lower price or the per-check SMTP receipts they do not surface, here is what MailCull does differently.
Free MillionVerifier Alternative: MailCull explained
MillionVerifier is the price floor on per-credit cost. MailCull leads on the auditable evidence chain, the M365 corporate cascade, and a recurring free tier. Here is the difference.
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