WC Emails Not Firing With PayPal Payments

Update:

This is also happening on credit card payments as well. WP SMTP reports the following error:

/home/customer/www/domain.com/public_html/wp-content/plugins/woocommerce/includes/emails/class-wc-email.php (line: 655)

The test email sent via the WP SMTP plugin works fine. I’m unable to use WC to manually send invoice (new order) notifications to customers who just placed an order. It’s timing out and generating the same error as above, though WP Mail Logging notes the email has been sent.

Hello,

As a first step, to get a better idea of your site setup, please provide the following:

Could you please share a copy of your site’s System Status? You can find it via WooCommerce > Status. Select “Get system report” and then “Copy for support”.?

Error Log: Share a copy of any fatal error log found under WooCommerce > System Status > Logs (if any other error is being displayed).

Please let us know.

Thank you for your response. A single unrelated fatal error log for WordFence was generated 18 days ago for being unable to connect to their scanning servers. Below is our system status with the domain changed.

### WordPress Environment ###

WordPress address (URL): https://domain.com
Site address (URL): https://domain.com
WC Version: 6.5.1
REST API Version: ? 6.5.1
WC Blocks Version: ? 7.4.3
Action Scheduler Version: ? 3.4.0
Log Directory Writable: ?
WP Version: 6.0
WP Multisite: –
WP Memory Limit: 768 MB
WP Debug Mode: –
WP Cron: ?
Language: en_US
External object cache: ?

### Server Environment ###

Server Info: Apache
PHP Version: 7.4.29
PHP Post Max Size: 256 MB
PHP Time Limit: 120
PHP Max Input Vars: 3000
cURL Version: 7.66.0
OpenSSL/1.1.1n-fips

SUHOSIN Installed: –
MySQL Version: 5.7.32-35-log
Max Upload Size: 256 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 6.5.1
WC Database Prefix: wp_ieqx_
Total Database Size: 192.54MB
Database Data Size: 157.15MB
Database Index Size: 35.39MB
wp_ieqx_woocommerce_sessions: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_api_keys: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_attribute_taxonomies: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_downloadable_product_permissions: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_order_items: Data: 1.55MB + Index: 0.73MB + Engine MyISAM
wp_ieqx_woocommerce_order_itemmeta: Data: 10.63MB + Index: 6.47MB + Engine MyISAM
wp_ieqx_woocommerce_tax_rates: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_woocommerce_tax_rate_locations: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_shipping_zones: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_shipping_zone_locations: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_woocommerce_shipping_zone_methods: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_payment_tokens: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_woocommerce_payment_tokenmeta: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_woocommerce_log: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
statistics_exclusions: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
statistics_pages: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
statistics_useronline: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
statistics_visit: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
statistics_visitor: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_actionscheduler_actions: Data: 0.19MB + Index: 0.19MB + Engine InnoDB
wp_ieqx_actionscheduler_claims: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_actionscheduler_groups: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_actionscheduler_logs: Data: 0.16MB + Index: 0.13MB + Engine InnoDB
wp_ieqx_commentmeta: Data: 0.04MB + Index: 0.03MB + Engine MyISAM
wp_ieqx_comments: Data: 9.26MB + Index: 3.53MB + Engine MyISAM
wp_ieqx_dynamic_widgets: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_links: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_options: Data: 0.48MB + Index: 0.05MB + Engine MyISAM
wp_ieqx_postmeta: Data: 34.32MB + Index: 17.82MB + Engine MyISAM
wp_ieqx_posts: Data: 2.93MB + Index: 0.84MB + Engine MyISAM
wp_ieqx_termmeta: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_terms: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_term_relationships: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_term_taxonomy: Data: 0.01MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_tm_taskmeta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_ieqx_tm_tasks: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_usermeta: Data: 2.04MB + Index: 1.12MB + Engine MyISAM
wp_ieqx_users: Data: 0.12MB + Index: 0.09MB + Engine MyISAM
wp_ieqx_wc_admin_notes: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wc_admin_note_actions: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wc_category_lookup: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wc_customer_lookup: Data: 1.52MB + Index: 0.50MB + Engine InnoDB
wp_ieqx_wc_download_log: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_ieqx_wc_order_coupon_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_ieqx_wc_order_product_lookup: Data: 2.52MB + Index: 1.22MB + Engine InnoDB
wp_ieqx_wc_order_stats: Data: 1.52MB + Index: 0.77MB + Engine InnoDB
wp_ieqx_wc_order_tax_lookup: Data: 0.08MB + Index: 0.06MB + Engine InnoDB
wp_ieqx_wc_product_attributes_lookup: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wc_product_download_directories: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wc_product_meta_lookup: Data: 0.02MB + Index: 0.09MB + Engine InnoDB
wp_ieqx_wc_rate_limits: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wc_reserved_stock: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wc_tax_rate_classes: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wc_webhooks: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wfBlockedIPLog: Data: 0.01MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_wfBlocks7: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_ieqx_wfConfig: Data: 0.52MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_wfCrawlers: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_wfFileChanges: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wfFileMods: Data: 4.35MB + Index: 0.35MB + Engine MyISAM
wp_ieqx_wfHits: Data: 0.49MB + Index: 0.11MB + Engine MyISAM
wp_ieqx_wfHoover: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_wfIssues: Data: 0.01MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_wfKnownFileList: Data: 3.19MB + Index: 0.15MB + Engine MyISAM
wp_ieqx_wfLiveTrafficHuman: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wfLocs: Data: 0.03MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_wfLogins: Data: 0.29MB + Index: 0.06MB + Engine MyISAM
wp_ieqx_wfls_2fa_secrets: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_wfls_settings: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wfNotifications: Data: 0.04MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_wfPendingIssues: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_ieqx_wfReverseCache: Data: 0.02MB + Index: 0.01MB + Engine MyISAM
wp_ieqx_wfSNIPCache: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_ieqx_wfStatus: Data: 0.10MB + Index: 0.04MB + Engine MyISAM
wp_ieqx_wfTrafficRates: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wpmailsmtp_debug_events: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wpmailsmtp_tasks_meta: Data: 0.08MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_wpml_mails: Data: 79.52MB + Index: 0.00MB + Engine InnoDB
wp_ieqx_yoast_indexable: Data: 0.44MB + Index: 0.33MB + Engine InnoDB
wp_ieqx_yoast_indexable_hierarchy: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_ieqx_yoast_migrations: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_ieqx_yoast_primary_term: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_ieqx_yoast_seo_links: Data: 0.06MB + Index: 0.03MB + Engine InnoDB
wp_ieqx_yoast_seo_meta: Data: 0.05MB + Index: 0.00MB + Engine InnoDB

### Post Type Counts ###

attachment: 137
blocked_user: 2
custom_css: 1
jetpack_migration: 2
nav_menu_item: 8
oembed_cache: 5
page: 41
product: 24
product_variation: 5
shop_coupon: 1
shop_order: 10473
shop_order_refund: 555
wp_global_styles: 1
wpcf7_contact_form: 1

### Security ###

Secure connection (HTTPS): ?
Hide errors from visitors: ?

### Active Plugins (28) ###

WooCommerce Fraud Prevention Plugin Premium: by theDotstore – 2.1.0
Akismet Anti-Spam: by Automattic – 4.2.4
Autoptimize: by Frank Goossens (futtta) – 3.0.4
Contact Form 7: by Takayuki Miyoshi – 5.5.6.1
Disable Cart Fragments: by LittleBizzy – 1.3.0
Yoast Duplicate Post: by Enrico Battocchi & Team Yoast – 4.4
Dynamic Widgets: by Qurl – 1.5.16
Google XML Sitemaps: by Auctollo – 4.1.1
Head, Footer and Post Injections: by Stefano Lissa – 3.2.3
Max Mega Menu - Pro Addon: by megamenu.com – 2.2.4
Max Mega Menu: by megamenu.com – 2.9.6
Really Simple CAPTCHA: by Takayuki Miyoshi – 2.1
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 3.1.5
SiteGround Optimizer: by SiteGround – 7.1.1
WooCommerce Colors: by WooThemes – 1.0.7
WooCommerce Stripe Gateway: by WooCommerce – 5.5.0
WooCommerce Google Analytics Integration: by WooCommerce – 1.5.9
Multi-Carrier Shipping Plugin for WooCommerce: by PluginHive – 2.1.2
WooCommerce Print Invoices/Packing Lists: by SkyVerge – 3.11.4
WooCommerce Shipment Tracking: by WooCommerce – 1.7.0
WooCommerce - ShipStation Integration: by WooCommerce – 4.1.48
WooCommerce Waitlist: by Neil Pie – 2.3.2
WooCommerce: by Automattic – 6.5.1
Wordfence Security: by Wordfence – 7.5.10
Yoast SEO: by Team Yoast – 18.9
WP Mail Logging: by Wysija – 1.10.4
WP Mail SMTP: by WPForms – 3.4.0
WP-Optimize - Clean, Compress, Cache: by David Anderson
Ruhani Rabin
Team Updraft – 3.2.3

### Inactive Plugins (0) ###

### Dropin Plugins (2) ###

install.php: install.php
object-cache.php: Memcached

### Must Use Plugins (1) ###

SSO: by Garth Mortensen
Mike Hansen – 0.1

### Settings ###

API Enabled: ?
Force SSL: ?
Currency: USD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

Connected to WooCommerce.com: ?
Enforce Approved Product Download Directories: –

### WC Pages ###

Shop base: #5 - /shop/
Cart: #6 - /cart/
Checkout: #7 - /checkout/
My account: #8 - /my-account/
Terms and conditions: #44 - /terms/

### Theme ###

Name: 
Version: (update to version 0 is available)
Author URL: 
Child Theme: ? – If you are modifying WooCommerce on a parent theme that you did not build personally we recommend using a child theme. See: How to create a child theme
WooCommerce Support: ?

### Templates ###

Archive Template: Your theme has a woocommerce.php file
you will not be able to override the woocommerce/archive-product.php custom template since woocommerce.php has priority over archive-product.php. This is intended to prevent display issues.

Hello,

Can you please check if emails are enabled in WooCommerce > Settings > Emails? If they are, have you tried placing a test order with a default payment method such as Check payments or Bank transfer to see if emails get sent out?

If emails are not sent with default payment methods, the issue is likely caused by a conflict with your theme or with another plugin. To determine what’s causing the issue, please temporarily switch your theme back to Storefront and disable all plugins except for WooCommerce. If that resolves the issue, then re-enable plugins one-by-one until you find the one that’s causing the conflict.

You can find a more detailed explanation on how to do a conflict test here: https://docs.woocommerce.com/document/how-to-test-for-conflicts/

Emails are enabled.

If emails are not sent with default payment methods, the issue is likely caused by a conflict with your theme or with another plugin.

This website is hosted with SiteGround. I suspect the issue is being caused by the SG Optimizer plugin. Clearing the SG Optimizer plugin cache, and also the dynamic and memcached cache on SG’s backend, restored email functionality. This will require additional investigation on my part, though I now believe SiteGround’s cache is responsible for the problem. Thanks for your replies and I will mark this issue as resolved.

Hello @captaincrank!

Thanks for your replies and I will mark this issue as resolved.

Glad to hear it and thanks for letting us know!

If you want to run a full conflict test, I recommend that you go through the documentation here.

Cheers!