Email wont send after wp 5.5. update

Hi,

What is your mailer method?

Here is the diagnostic.
Mailer: postsmtp
HostName: 3depo.com
cURL Version: 7.29.0
OpenSSL Version: NSS/3.44
OS: Linux vps.somuchip.com 3.10.0-1062.9.1.el7.x86_64 #1 SMP Fri Dec 6 15:49:49 UTC 2019 x86_64
PHP: Linux 7.3.13 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
WordPress: 5.5 en_AU UTF-8
WordPress Theme: threedepo
WordPress Plugins: 3DEPO, Ultimate Addons for Visual Composer, WPBakery Page Builder, Post SMTP, WPS Hide Login
WordPress wp_mail Owner: /home/admin/web/3depo.com/public_html/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
WordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_init
Postman: 2.0.14
Postman Sender Domain (Envelope|Message): 3depo.com | 3depo.com
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtp:tls:login://vps.somuchip.com:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 129 | 0
Postman Stealth Mode: Yes

This is strange, you don’t have a lot of plugins so no conflict here.

strange request but can you go to settings and just press the save button?

Not sure what you mean. What save button you mean?

So the test mail from the backend works on but all the emails in my own plugin example:

wp_mail( $user[’email’], $subject, $message, $headers );

these fail with the error I provided earlier.

Very strange. Can you assist to find a solution?

first step
https://prnt.sc/ty6b45

second step
https://prnt.sc/ty6bpc

Ok. I’ve pressed save settings and nothing strange. All settings are saved. No error on the backend.

My header array in the wp_mail function in my code has only ‘Content-Type: text/html; charset=UTF-8’,’BCC: ‘.$settings[’email_address’].”

I think the issue is the FROM email is not parsed properly in your plugin by the getFromEmailAddress().

OK.. so the bug in your plugin is that it cannot override the FROM email.

I’ve added FROM: email <[email protected]> to my wp_mail header and the mail gets sent perfect.

Can you please check and fix the FROM override so it works with WP5.5. Thanks

Update…Adding the FROM in the WP_mail header works when sending emails from backend but not for sending emails on frontend. Strange…

Regular emails like new user register, comments, etc… Working?

I don’t have user registration just some special types of emails in my own plugin. AS mentioned I simply use the WP_Mail function, nothing fancy.

I’ve removed the plugin for now. The built in WP mailer works ok. Let me know when you’ve resolved the issue.
Thanks.

Sure

I have another website and has similar issues. The FROM email address in the SMTP plugin is ignored and the WP email (Administration Email Address) is used instead. Maybe this will give you an idea where the issue may be.

Sorry but issue remains in version 2.0.15

I was having the same error using BBQ Firewall. Changing the mailer type from PostSMTP to PHPMailer in the Account tab seems to fix it (for me at least, using SendGrid).