graylist
Neither blocked nor approved
A graylist occupies the middle ground between a whitelist (approved) and a blacklist (banned).
Items on a graylist are neither automatically trusted nor rejected—they're held for review, subjected to additional scrutiny, or given conditional access.
Email servers graylist unfamiliar senders, temporarily delaying messages to filter out spam.
The domain was graylisted pending verification.
Also spelled greylist.
Tracked items roster
- blocklistCatalog of prohibited items
- allowlistApproved entries only
- quarantineIsolation preventing disease transmission
- screeningEvaluative selection process
moderation · flagged · triage · vetting · restricted
Uncertain and provisional
- conditionalDependent on prerequisites
- interimProvisional in-between phase
- temporaryLimited in duration
- trialJudicial examination of claims
probationary · preliminary · pending · unconfirmed · evaluative · exploratory · draft · undecided
Not easily understood
- dubiousOf uncertain reliability
- questionableOf uncertain validity
- borderlineEdge of acceptability
- equivocalUncertain in meaning
indeterminate · nebulous · murky · uncertain · in-between · marginal · ambivalent · unclassified
watchlist
Tracked items roster
- blocklistCatalog of prohibited items
- allowlistApproved entries only
- quarantineIsolation preventing disease transmission
screening · moderation · flagged · triage · vetting · restricted
tentative
Uncertain and provisional
- conditionalDependent on prerequisites
- interimProvisional in-between phase
- temporaryLimited in duration
trial · probationary · preliminary · pending · unconfirmed · evaluative · exploratory · draft · undecided · borderline
unclear
Not easily understood
- dubiousOf uncertain reliability
- questionableOf uncertain validity
- borderlineEdge of acceptability
equivocal · indeterminate · nebulous · murky · uncertain · in-between · marginal · ambivalent · unclassified · unsorted