From 19a6780a55635a144dd585b5d358a22fd8ce7b14 Mon Sep 17 00:00:00 2001 From: Vishal Rai Date: Tue, 4 Oct 2022 17:47:27 +0530 Subject: [PATCH] Add missing content to DevOps node (#2064) * Add missing content to Devops node Added missing content to 100-white-grey-listing.md node * Update content/roadmaps/102-devops/content/103-networking-protocols/103-emails/100-white-grey-listing.md Co-authored-by: Kamran Ahmed --- .../103-emails/100-white-grey-listing.md | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/content/roadmaps/102-devops/content/103-networking-protocols/103-emails/100-white-grey-listing.md b/content/roadmaps/102-devops/content/103-networking-protocols/103-emails/100-white-grey-listing.md index f7a8c9b52..d046c7346 100644 --- a/content/roadmaps/102-devops/content/103-networking-protocols/103-emails/100-white-grey-listing.md +++ b/content/roadmaps/102-devops/content/103-networking-protocols/103-emails/100-white-grey-listing.md @@ -1 +1,9 @@ -# White grey listing \ No newline at end of file +# White Listing vs Grey Listing + +White listing is a process of adding an email to an approved sender list, so emails from that sender are never moved to the spam folder. This tells an email server to move messages to the inbox directly. + +`Greylisting` is a method of protecting e-mail users against spam. A mail transfer agent (MTA) using greylisting will "temporarily reject" any email from a sender it does not recognize. If the mail is legitimate, the originating server will try again after a delay, and the email will be accepted if sufficient time has elapsed. + +Free Content +Basic Introduction to whitelisting +Detailed Introduction to greylisting