Checked
0
0 lists
Low
0
0%
Medium
0
0%
High
0
0%
Very high
0
0%
Unverified
0
retryable
Drop a .txt file
or click to browse — one address per line| List | Status | Checked | Distribution | Created |
|---|
| On | Entry | Source |
|---|
Parallel checks0 uses the recommended value
0
DNS timeoutSeconds to wait for one answer
RetriesAttempts before an address is left unverified
Split lists atLonger lists are cut into parts
Retry unverifiedRe-check DNS failures when a list resumes
Hard rules come first — bad syntax, a domain that does not exist, a null-MX domain, no mail route at all, or a disposable domain. Each is Very high on its own.
Everything else adds points. When DNS never answers the address is recorded as unverified rather than guessed at, and stays queued for the next run.