Fatal error when viewing email log

Hello,

We are getting fatal error on multiple sites when viewing email log. Doesn’t happen to all sites, but some sites and we have detected that those sites where this crash happens they have very large postmeta table where is lot of messages. We deleted post smtp tables from postmeta table and then it was working, so something to do with large postmeta.

We also calculated that there was way more messages than that limited 250

PHP Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 3494656 bytes) in?/var/www/vhosts/domain.example/httpdocs/wp-includes/class-wpdb.php?on line 2153\n

Mailer: postsmtp
HostName: domain.example
cURL Version: 7.68.0
OpenSSL Version: OpenSSL/1.1.1f
OS: Linux censored 5.15.0-60-generic #66~20.04.1-Ubuntu SMP Wed Jan 25 09:41:30 UTC 2023 x86_64
PHP: Linux 8.0.28 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 6.1.1 fi UTF-8
WordPress Theme: Myyntimaatio
WordPress Plugins: Post SMTP, Advanced Custom Fields PRO, Advanced Custom Fields: Table Field, All-in-One WP Migration Unlimited Extension, All-in-One WP Migration, iThemes Security, Complianz | GDPR/CCPA Cookie Consent, Custom Facebook Feed Pro Developer, Dynamic.ooo – Dynamic Content for Elementor, E2Pdf, Ele Custom Skin, Elementor Pro, Elementor, Essential Addons for Elementor – Pro, Essential Addons for Elementor, Flamingo, Happy Elementor Addons, LiteSpeed Cache, Loco Translate, Menu Image, Myyntimaatio Launcher, PublishPress Future, Redirection, Contact Form DB – Elementor, Simple Custom Post Order, User Role Editor, WooCommerce Shipping & Tax, WooCommerce, Yoast SEO, WP All Export Pro, WP All Import Pro, Contact Listing for WP Job Manager, WP Last Modified Info, WP All Export – ACF Export Add-On Pro, WP All Export – WooCommerce Export Add-On Pro, WP All Import – ACF Add-On, WP All Import – WooCommerce Import Add-On Pro, WS Form PRO
WordPress wp_mail Owner: /var/www/vhosts/domain.example/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
Postman: 2.4.3
Postman Sender Domain (Envelope|Message): myyntimaatio.fi | sivustamo.com
Postman Prevent Message Sender Override (Email|Name): Yes | Yes
Postman Active Transport: SendGrid API (https://api.sendgrid.com:443)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 2362 | 997