From b5c719486111ed9f203ef94be77f414090fe36f8 Mon Sep 17 00:00:00 2001 From: Marcel Bokhorst Date: Sun, 20 Jun 2021 16:13:04 +0200 Subject: [PATCH 1/2] Update FAQ.md Updated FAQ --- FAQ.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/FAQ.md b/FAQ.md index 51b6f4805b..fdd38a3720 100644 --- a/FAQ.md +++ b/FAQ.md @@ -3721,7 +3721,8 @@ This feature requires an internet connection and is not available in the Play st A spam block list is basically a list of domain names which have been used to send spam or to spread malware. -The domain name will be resolved into an IP address and after that the IP address will be looked up: +A spam block list is checked by resolving the domain name of an email address into an IP address +and looking up the IP address with a DNS request: ``` example@gmail.com -> From 645c0cb222ee154fdfc13f3058c3279285754722 Mon Sep 17 00:00:00 2001 From: Marcel Bokhorst Date: Sun, 20 Jun 2021 16:18:28 +0200 Subject: [PATCH 2/2] Update FAQ.md Updated FAQ --- FAQ.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/FAQ.md b/FAQ.md index fdd38a3720..437be40914 100644 --- a/FAQ.md +++ b/FAQ.md @@ -3731,9 +3731,11 @@ gmail.com -> 172.217.168.229 DNS lookup 229.168.217.172.zen.spamhaus.org -> 127.0.0.2: spam - not found: not spam + NXDOMAIN: not spam ``` +NXDOMAIN = no such domain + For more information, please see [this article](https://en.wikipedia.org/wiki/Domain_Name_System-based_blackhole_list). FairEmail currently uses the following block lists: