Hello @haseeb0001
Yes, plugin is up to date to the latest version and issue is still happening.
Please find the diagnostic report
Mailer: postsmtp
HostName: xxxxxxxxxx.com
cURL Version: 7.81.0
OpenSSL Version: OpenSSL/3.0.2
OS: Linux pod-216957 5.15.107+ #1 SMP Sat May 20 09:38:40 UTC 2023 x86_64
PHP: Linux 8.0.30 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 6.3 ja UTF-8
WordPress Theme: Hello Elementor
WordPress Plugins: Elementor Pro, Elementor, IPE Features, Jet Appointments Booking, JetBlocks For Elementor, JetEngine, JetFormBuilder User Login Action, JetFormBuilder Select Autocomplete, JetFormBuilder Stripe Gateway, JetPopup, JetFormBuilder, LiteSpeed Cache, Loco Translate, Post SMTP, Yoast SEO, WP Crontrol, WP Activity Log
WordPress wp_mail Owner: /nas/content/live/xxxxxxx/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
Postman: 2.5.9.3
Postman Sender Domain (Envelope|Message): xxxxxx
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SendGrid API (https://api.sendgrid.com:443)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 1533 | 43
I have redacted domain and client name, because I believe that information is irrelevant. Should you require any of those, please let me know if there is a possibility to send it in private.
Thank you for looking into resolving this.
Best Regards