What do you mean: “after setting the SMTP through others tab.” – you have selected and configured Other SMTP mailer?
Have you actually done that? Host/Port/username/password/encryption.
Yes, I have done that. Can you take a look at the issue please
Please deactivate all other SMTP-related plugins. Leave WP Mail SMTP activated only. The issue like you mentioned in your debug log is caused by conflicts between different SMTP plugins.
This is the correct debug output that I currently have on sending a test mail
Versions:
WordPress: 4.9.2
WordPress MS: No
PHP: 5.6.33
WP Mail SMTP: 1.2.2
Params:
Mailer: mail
Constants: No
ErrorInfo:
Host: localhost
Port: 25
SMTPSecure: string(0) “”
SMTPAutoTLS: bool(true)
SMTPAuth: bool(false)
Server:
OpenSSL: Yes
SMTP Debug:
[empty]
There is no other SMTP plugin activated currently
Please post here a list of activated plugins, also, check Drop-ins (those that are in mu-plugin directory).
List of activated plugins:
1. All In One SEO Pack
2. Contact Form 7
Duplicate Page
Easy Bootstrap Shortcode
Gravity Forms
Gravity Forms Address Autocomplete
Gravity Forms Schedule Entries Export
Gravity Forms SMS Pro
Gravity Forms Tooltips
LayerSlider WP
Really Simple CAPTCHA
Regenerate Thumbnails
SendGrid
Setmore Plus
SG Optimizer
Slider Revolution
Stop Spam Comments
Styles & Layouts Gravity Forms
Under Construction
UserPro
Visitors Traffic Real Time Statistics
WooCommerce
WooCommerce – Store Exporter
WooCommerce Advanced Notifications
WooCommerce Cash On Pickup
WooCommerce Delivery Slots (shared on wplocker.com)
WooCommerce eNETS Gateway
WooCommerce Frontend Shop Manager – Free Version
WooCommerce Stock Manager
Wordfence Security
WordPress Importer
WP Mail SMTP
WP Post Page Clone
WPBakery Visual Composer
the mu plugin directory is empty
Update: I didn’t notice Sendgrid earlier. So many plugins. My fault. I apologise. THe test mail has arrived successfully after deactivating it.
Thanks, it also fixed a huge problem with gravity form notification. Thank you for your time.
Awesome and prompt support.
Awesome, I’m glad that fixed the issue.
I would be thankful for a plugin review here on wordpress.org :).
