In e-mail validator, fallback from MX to A record (#7955)

Fix #7831
6 years ago · 32a4b524fb
parent 4b198b172d
commit 32a4b524fb
1 changed files with 2 additions and 0 deletions
--- a/app/validators/email_mx_validator.rb
+++ b/app/validators/email_mx_validator.rb
@ -16,6 +16,8 @@ class EmailMxValidator < ActiveModel::Validator
    return true if domain.nil?

    records = Resolv::DNS.new.getresources(domain, Resolv::DNS::Resource::IN::MX).to_a.map { |e| e.exchange.to_s }
+    records = Resolv::DNS.new.getresources(domain, Resolv::DNS::Resource::IN::A).to_a.map { |e| e.exchange.to_s } if records.empty?
+
    records.empty? || on_blacklist?(records)
  end