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faq:email:why_mail_client_showing_ssl_certificate_expiration_warning [2022/03/04 17:39] – vikki | faq:email:why_mail_client_showing_ssl_certificate_expiration_warning [2022/03/07 11:17] (current) – vikki | ||
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====== Why is my mail client showing SSL expiration warning? ====== | ====== Why is my mail client showing SSL expiration warning? ====== | ||
- | AfterOffice | + | Lookafter |
* **DST Root CA X3**: An older root certificate that are trusted and recognised by older devices (e.g. Windows XP prior to SP3, MacOS below 10.12.1) and older mail clients (e.g. Windows Live Mail) | * **DST Root CA X3**: An older root certificate that are trusted and recognised by older devices (e.g. Windows XP prior to SP3, MacOS below 10.12.1) and older mail clients (e.g. Windows Live Mail) |