kemeknetwork

And I just tested. It’s not Limit Login Attempts or Under Construction. So that leaves Jetpack or Woo plugins – OR server-side stuffs/configs.

Same issue. WooCommerce main admin: *purple warning triangle* “There was an error getting your inbox. Please try again.”

Not using iThemes. Brand new install, almost nothing on it – Jetpack; Limit Login Attempts Reloaded; Under Construction; and Woo Commerce / Payments / Shipping & Tax plugins.

Amazingly, for me, the solution was:

1 – Deactivate Postman. It turns out the problem I was trying to fix by installing Postman could not be solved in that way.

2 – ADD MX Entries in CPanel, adding (for GoDaddy, your host will be different):

0 smtp.secureserver.net
10 mailstore1.secureserver.net

IMPORTANT – these are not changes to be made to your domain’s DNS / Zone File – add to the “MX Entry” section of your hosting account’s CPanel.

My PHP form (Jetpack in this case) is now working perfectly.

I know this is an old thread, but figuring my solution may apply to many as GoDaddy hosting is so common. Good luck!

And when I say tests are failing, I mean:

Incorrect authentication data

This is brutal. Not sure what I am missing, should be cake setup. I have an install with the above situation, from GoDaddy hosting trying to use Office365 Exchange relay. Leaving that one aside for now.

Here is STANDARD install and config. GoDaddy webhost to GoDaddy SMTP.

Using smtpout.secureserver.net, have tried ports 587 / 3535 / 25.

Have also tried Plain and Login auth types.

Email is working fine. Tests from Postman however fail consistently. SO CONFUSED.

Here is connectivity test:
? ?? Port 25 can be used for SMTP to smtpout.secureserver.net.
? ?? Port 587 can be used for SMTP to smtpout.secureserver.net.
? ?? Port 465 can be used for SMTP to smtpout.secureserver.net.

Here’s my diagnostics:

OS: Linux a2plcpnl0399.prod.iad2.secureserver.net 2.6.32-604.30.3.lve1.3.63.el6.x86_64 #1 SMP Sun Sep 27 06:34:10 EDT 2015 x86_64
PHP: Linux 5.4.45 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
WordPress: 4.4.2 en_US UTF-8
WordPress Theme: Twenty Fifteen
WordPress Plugins: Jetpack by WordPress.com, Limit Login Attempts, Postman SMTP
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email
Postman: 1.7.2
Postman Sender Domain (Envelope|Message): greenworksrecyclingwv.com | greenworksrecyclingwv.com
Postman Prevent Message Sender Override (Email|Name): Yes | Yes
Postman Active Transport: SMTP (smtp:tls:login://smtpout.secureserver.net:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 0 | 1