Cannot send emails to Gmail users
So I am getting this message everytime I send emails to any gmail user.
Delivery to the following recipients failed permanently:
Reason: There was an error while attempting to deliver your message with [Subject: "Tacoma Wheels and Tires"] to. MTA p3plsmtpa12-09.prod.phx3.secureserver.net received this response from the destination host IP - 209.85.232.26 - 550 , 550-5.7.26 This message does not have authentication information or fails to 550-5.7.26 pass authentication checks. To best protect our users from spam, the 550-5.7.26 message has been blocked. Please visit 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.26 information. b33-20020a05620a272100b0067d3b4ad74asi2031678qkp.731 - gsmtp .
Tất cả các câu trả lời (1)
This is generally an error of the domain information. The gmail server sees email incoming from domaina, yet the ip of smtp server is from domainb (probably a web host company). This can look like spam if the domainb does not have settings that tie it to domain a (normally DKIM and SPF settings). I suggest checking with your website host provider.