Oplossen in gmail:
https://support.google.com/mail/answer/1366858?hl=nl&co=GENIE.Platform%3DDesktop
Oplossen in Outlook:
https://support.microsoft.com/nl-nl/office/e-mail-gaat-per-ongeluk-naar-de-map-ongewenste-e-mail-f409b58c-2617-47e2-8a97-cab612d98eff