Ruby on Rails email registration using Mailgun fails with a ‘554 activate account’ error, even though the recipient is approved. How can this be resolved?
class UserSignupController < ApplicationController
def modify_user
user = User.find(params[:id])
user.update_without_password(user_attributes)
end
private
def user_attributes
params.require(:user).permit(:username, :email)
end
end
hey, try checking your domain and smtp settings on mailgun. i had a similar issue and turning the domain up solved it after updtaing the dns details. might be a config hiccup here too, idk.
The error you’re encountering appears to originate from Mailgun enforcing domain activation rules. I encountered a similar issue when my configuration was correct, but my domain hadn’t been fully activated in Mailgun’s dashboard. The resolution involved verifying that my mail sending domain was not only approved but properly set up to handle outbound emails. It is also beneficial to verify that the API key and SMTP credentials are correctly implemented in your Rails app. Double-checking your Mailgun settings, especially your DNS records, might be the key to resolving this error.
During my experience with Mailgun-related issues, I discovered that the 554 error often comes from a misalignment between the sender details in the Rails configuration and the settings on Mailgun. In my case, I had not strictly adhered to the required domain authentication protocols, resulting in the rejection of outgoing emails. I eventually resolved the problem by ensuring that the mailing address used in the email header exactly matched one of the approved sender addresses on Mailgun. It is also advisable to review your Mailgun account settings to make sure no additional activation steps are overlooked.
hey, i fixed mine by checking my rails env vars. turns out i was using bad creds in production, so re-verifying your config files to match mailgun can really help. sometimes it’s just a sneaky env var issue causing the error.
In one project, the error was resolved by looking deeper into the email headers and SMTP handshake details. It turned out that even though the domain appeared activated, the header configuration in Rails was not completely aligned with Mailgun’s requirements. I ultimately identified that the envelope sender parameter did not match the verified domain, which led to the issue. Reviewing the detailed error logs in Mailgun and comparing them with the Rails mail settings helped clear things up. I recommend a thorough review of every email parameter to ensure full consistency between your app and Mailgun.