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-rw-r--r--app/validators/email_mx_validator.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/app/validators/email_mx_validator.rb b/app/validators/email_mx_validator.rb
index 5b4c684b2..96fbedcfc 100644
--- a/app/validators/email_mx_validator.rb
+++ b/app/validators/email_mx_validator.rb
@@ -24,6 +24,7 @@ class EmailMxValidator < ActiveModel::Validator
 
       ([domain] + hostnames).uniq.each do |hostname|
         ips.concat(dns.getresources(hostname, Resolv::DNS::Resource::IN::A).to_a.map { |e| e.address.to_s })
+        ips.concat(dns.getresources(hostname, Resolv::DNS::Resource::IN::AAAA).to_a.map { |e| e.address.to_s })
       end
     end