The story
safe + list, because the emails are "safe" from being reported as spam.
Etymology from Wiktionary, CC BY-SA 4.0.
safelist
Today it means: A list of e-mail addresses whose owners have agreed to receive promotional email. Full definition →
Today it means: A list of e-mail addresses whose owners have agreed to receive promotional email. Full definition →
safe + list, because the emails are "safe" from being reported as spam.
Etymology from Wiktionary, CC BY-SA 4.0.