Sporadic cURL error 6

@momsclub

Are you hosted on a VPS?

I don’t think so, we’re using GoDaddy’s shared hosting.

I searched for godaddy wiki, mybe it will say something about your issue and I found this:
https://www.godaddy.com/community/Managing-Web-Hosting/SMTP-Connect-issue-on-server-open-port-465-to-be-connectivity-on/td-p/52859

Godaddy is blocking custom smtp configurations.

Thanks! I had a long chat with GoDaddy. I’m not on managed hosting, I’m on cPanel hosting and they say they aren’t blocking the port on that. We’ve installed a script to track e-mail for a bit to see if we can see what is causing the failure. I’ll give it a little bit to start failing again and then let you know.

Okay, I found the error log on the server and pulled a bunch of the latest errors from it. Does this help at all?

[31-Oct-2017 21:46:25 UTC] ERROR PostmanUtils: cURL error 6: Could not resolve: https://www.googleapis.com (Could not contact DNS servers)
[31-Oct-2017 21:46:25 UTC] ERROR PostmanWpMail: Exception code=0 message=Error executing wp_remote_post: cURL error 6: Could not resolve: https://www.googleapis.com (Could not contact DNS servers)
[31-Oct-2017 21:46:26 UTC] ERROR PostmanUtils: cURL error 6: Could not resolve: https://www.googleapis.com (Could not contact DNS servers)
[31-Oct-2017 21:46:26 UTC] ERROR PostmanWpMail: Exception code=0 message=Error executing wp_remote_post: cURL error 6: Could not resolve: https://www.googleapis.com (Could not contact DNS servers)
[01-Nov-2017 19:45:27 UTC] ERROR PostmanWpMail: Exception code=0 message=Could not resolve: accounts.google.com (Could not contact DNS servers)

Save this code as a php file in your website root, run it and
paste the result here:

<?php
$_h = curl_init();
curl_setopt($_h, CURLOPT_HEADER, 1);
curl_setopt($_h, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($_h, CURLOPT_HTTPGET, 1);
curl_setopt($_h, CURLOPT_URL, 'https://www.googleapis.com/' );
curl_setopt($_h, CURLOPT_DNS_USE_GLOBAL_CACHE, false );
curl_setopt($_h, CURLOPT_DNS_CACHE_TIMEOUT, 2 );

var_dump(curl_exec($_h));
var_dump(curl_getinfo($_h));
var_dump(curl_error($_h)); 

Sure thing!

string(436) “HTTP/1.1 404 Not Found Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: Mon, 01 Jan 1990 00:00:00 GMT Date: Thu, 02 Nov 2017 16:49:15 GMT Vary: X-Origin Content-Type: text/html; charset=UTF-8 X-Content-Type-Options: nosniff X-Frame-Options: SAMEORIGIN X-XSS-Protection: 1; mode=block Server: GSE Accept-Ranges: none Vary: Origin,Accept-Encoding Transfer-Encoding: chunked Not Found” array(26) { [“url”]=> string(26) “https://www.googleapis.com/” [“content_type”]=> string(24) “text/html; charset=UTF-8” [“http_code”]=> int(404) [“header_size”]=> int(427) [“request_size”]=> int(57) [“filetime”]=> int(-1) [“ssl_verify_result”]=> int(0) [“redirect_count”]=> int(0) [“total_time”]=> float(0.046082) [“namelookup_time”]=> float(0.000526) [“connect_time”]=> float(0.009714) [“pretransfer_time”]=> float(0.009796) [“size_upload”]=> float(0) [“size_download”]=> float(9) [“speed_download”]=> float(195) [“speed_upload”]=> float(0) [“download_content_length”]=> float(-1) [“upload_content_length”]=> float(-1) [“starttransfer_time”]=> float(0.046032) [“redirect_time”]=> float(0) [“redirect_url”]=> string(0) “” [“primary_ip”]=> string(13) “172.217.5.202” [“certinfo”]=> array(0) { } [“primary_port”]=> int(80) [“local_ip”]=> string(14) “184.168.200.27” [“local_port”]=> int(51289) } string(0) “”

just notice I didn’t ask the Diagnostic Test.
You can find it Post SMTP main page under Troubleshooting

thank you for your patience

Here you go:

OS: Linux p3plcpnl026.prod.phx3.secureserver.net 2.6.32-673.26.1.lve1.4.30.el6.x86_64 #1 SMP Wed Jun 21 19:37:37 EDT 2017 x86_64
PHP: Linux 5.5.38 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=No, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
WordPress: 4.8.3 en_US UTF-8
WordPress Theme: Respo Theme
WordPress Plugins: Gravity Forms, Akismet Anti-Spam, Authorize.net for WordPress, Gravity Forms Authorize.Net Add-On, Post SMTP, URL Params, Yoast SEO, WP Native Articles
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email
Postman: 1.7.7
Postman Sender Domain (Envelope|Message): momsclub.org | momsclub.org
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: Gmail API (https:oauth2://www.googleapis.com:443)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 32016 | 563
Postman Email Log (Enabled|Limit|Transcript Size): Yes | 500 | 128

Godday hosting making my support twice harder,
so many problems there ??

Last thing,
can you screenshot the output here:
Post SMTP main page under Troubleshooting –> Connectivity Test.

Ugh… I know. It is so annoying that it’s so sporadic!!

But, I managed to catch it in a failed state. I ran the connectivity test twice – within a minute of each other.

First one:
https://www.dropbox.com/s/rhj8yr82lcbgv6d/Failed.jpg?dl=0

Second one:
https://www.dropbox.com/s/opvfkh7mzpdikti/Success.jpg?dl=0

I didn’t change anything between the tests, same WP instance, I literally just hit ‘Begin Test’ a second time.

@momsclub

Very sorry for the trouble.

Just curious: are you the owner of the site?

I will ask for unusual step, could try the installing this plugin:
https://www.ads-software.com/plugins/wp-mail-bank/

and tell me did it work with the same configuration you had with postman?