Introduce common incoming email setup doc and new issue by email doc
What does this MR do?
Introduce common incoming email setup doc and new issue by email doc
Review Apps: http://ee-docs-incoming-email.178.62.207.141.xip.io/ee/administration/incoming_email.html
TODO
-
Port to CE https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/17481 -
Verify the instruction is correct, especially for the prerequisite part
What are the relevant issue numbers?
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/41046, https://gitlab.com/gitlab-org/gitlab-ce/issues/24849
Edited by 🤖 GitLab Bot 🤖