Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Ce sujet de discussion a été archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

Cannot send emails to Gmail users

  • 1 réponse
  • 1 a ce problème
  • 1 vue
  • Dernière réponse par david

will.robinson
will.robinson
more options

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 .

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 .

Toutes les réponses (1)

david
david
  • Top 10 Contributor
more options

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.