[Solution] Google 550 Authentication required

-
Was having issue with Google Apps email recently. The email kept on bounce back with the following error.
Delivery to the following recipient failed permanently:

email@example.sg

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 authentication required (state 14).

Step 1 : (Basic) Check your MX record.


This is probably the basic step that most people already did. Skip if you have already setup.


Step 2 : Google SPF TXT record


For me, this help solves my problem. Although I'm not entirely sure why some of my other Google Apps email works without this TXT record.
Note: For DirectAdmin, try "v=spf1 include:_spf.google.com ~all" (with the double-quote).


Step 1: Check your MX record.
  1. You can easily check your MX record propagation at http://www.whatsmydns.net/
  2. Most likely you will see different entries for some of the name servers out there.

Step 2: Flush your DNS
  1. Lower TTL.
  2. Delete ALL MX record entries.
  3. Check your domain MX at http://www.whatsmydns.net/ again. Make sure all the name servers removed their entries.
  4. Add back all Google MX records.


Hope this helps some of you out there as well. :)

Comments

Post a Comment

Popular posts from this blog

[Azure Websites PHP] Cross Domain request results in blank response page after Preflight HTTP OPTIONS

-
Image
THE PROBLEM I've deployed a REST API application ( CodeIgniter with Phil Sturgeon's Rest-Server library ) on Azure Websites. Although I've set the Access-Control-* header in my PHP application: header('Access-Control-Allow-Credentials: true'); header('Access-Control-Allow-Origin: *'); header('Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS'); header('Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept'); (If you need a working test file, here's the gist for the test file) But Azure Websites server doesn't return the headers in response. And thus all requests to the server failed with the error message: Origin http://example.azurewebsites.net is not allowed by Access-Control-Allow-Origin.   In order to make sure there's no problem with my application, I've deployed the same code to Appfog.com . And as expected, the application works just fine. The same application d
Read more

[Magento] Create Contact Form with Dynamic Recipient

-
There are many ways of creating contact forms to email to multiple recipient. I'm going to describe a way that uses Javascript a the frontend to change the target recipient. Advantage of this method: Easy to add in new emails in the future. Disadvantage of this method: For those who are particularly concern email privacy, you might not want to use this method. You can modify the email checking to the backend (controller) instead. Okay enough talking, lets get started. Step 1: Set up HTML form fields I'm going to use an example of drop down select to change the email. Of course, this is fairly easy to modify with other forms as well. Open up app/design/frontend/default/<theme>/template/contacts/contacts.phtml Insert the following snippets anywhere between the <form>...</form> tag. <select name="interest" id="interest" title="<?php echo Mage::helper('contacts')->__('Please select department t
Read more