Exception Code = 550

Hi,

ok, here is the log:

—
Mailer: postsmtp
HostName: mydomain.com
cURL Version: 7.64.0
OpenSSL Version: OpenSSL/1.1.1d
OS: Linux wp490 4.14.132-xenu-he #1 SMP Fri Dec 13 09:08:45 UTC 2019 x86_64
PHP: Linux 7.4.14-he.0 en_US.UTF-8
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=No, mcrypt=No, zlib_encode=Yes
WordPress: 5.7.2 de_DE UTF-8
WordPress Theme: Shop Isle
WordPress Plugins: Antispam Bee, ARI Adminer, BackWPup, Cachify, Classic Editor, Disable Comments, Dynamic Pricing and Discounts for WooCommerce Basic Version, Heartbeat Control by WP Rocket, Local Fonts, VarkTech Minimum Purchase for WooCommerce, Popup by Supsystic, Post SMTP, Products Purchase Limit for WooCommerce, Simple History, Statify, Sucuri Security – Auditing, Malware Scanner and Hardening, Ultimate Member, PayPal PLUS for WooCommerce, WooCommerce Advanced Free Shipping, WooCommerce PayPal Checkout Gateway, Germanized for WooCommerce, WooCommerce PDF Invoices & Packing Slips, WooCommerce, Yoast SEO, WPFront Notification Bar, YITH WooCommerce Custom Order Status
WordPress wp_mail Owner: /is/htdocs/wp10676469_0PVIUEJYNU/www/woo/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, WPO\WC\PDF_Invoices\Main->set_phpmailer_validator, PostsmtpMailer->get_mail_args
WordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_init
Postman: 2.0.23
Postman Sender Domain (Envelope|Message): mydomain.com | mydomain.com
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtp:tls:plain://wp10676469.mailout.server-he.de:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 23 | 64
Postman File Locking (Enabled|Temp Dir): No | /tmp`
—

OK, thanks…I changed that. Now I’ll wait and see what happens…

Just checked. Test emails are ok, but there was just on e email that returned the same error.

In the setting “Envelope Sender email address” we have “[email protected]”, and this is the account for the Authentication Data.

Ther Error says “You are not allowed to use the domain web.de as DATA From domain.”

This is a different address/domain. I believe it comes from WooCommerce’s mail settings, there is this address “[email protected]” (the shop owner’s private address” in the FROM field.

Maybe the Postman Settings take this address for his FROM, this would explain the error.

Would there be a possibility to change the FROM only in Postman, from [email protected] to [email protected]?

Thanks!

This makes sense, thank you.

(Strange that without using Postman this was never an issue…)

…I will check that…

Helo,

that was the solution. We changed the FROM Address to become the same as with which SMTP Postman logged on…and then it worked.

Thanks a lot!

It has worked 🙂

(I just wonder why things were competely different without your plugin…ordinary mails were fine, but the Backup Plugin could not send a mail, that’s why we installed your plugin…)