Problem receiving emails following the 2.4 update

@spiwee Hi,

I hope you are doing well.

Let me look into it; please share the Post SMTP Diagnostic test report in the meantime.

Thanks

Hi

Diagnostic report (I anonymized the data by putting “…”)
I’ve updated this morning in 2.4.1 but it’s still not working

Mailer: phpmailer
HostName: ...
cURL Version: 7.74.0
OpenSSL Version: OpenSSL/1.1.1n
OS: Linux vps-0db46774 5.10.0-21-cloud-amd64 #1 SMP Debian 5.10.162-1 (2023-01-21) x86_64
PHP: Linux 7.4.33 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 fr_FR UTF-8
WordPress Theme: Twenty Twenty-Three Child
WordPress Plugins: Advanced Uptime Monitor Extension, BackWPup, Child Theme Configurator, MainWP BackWPup Extension, MainWP Child, MainWP Vulnerability Checker Extension, MainWP Dashboard, Post SMTP, Security Ninja for MainWP, Wordfence Security, WPS Hide Login
WordPress wp_mail Owner: /var/www/html/.../wp-includes/pluggable.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
WordPress wp_mail_from Filter(s): wordfence::fixWPMailFromAddress
WordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_init
Postman: 2.4.1
Postman Sender Domain (Envelope|Message): ... | ...
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtps:login://ssl0.ovh.net:465)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 128 | 0

@spiwee Temporary disable the WordFence and ninja security plugin, then change mailer to Post SMTP, test it, and let me know.

Thanks

I disabled both extensions and reconfigured the mailer to Post SMTP. The error notification reappears and I cannot send a test email : it’s deseabled

@spiwee please get in touch with our Post SMTP website, I need to ask a few more things so then I can get back to you with a solution.

Thanks

We create, manage and monitor many sites for our clients. I have had the same error on a number of our sites after upgrading to the latest version of Post SMTP. Of course no other plugins calling wp_mail are installed, and I frankly don’t have the time to diagnose what code your plugin was having trouble with, especially since some of these sites are complex ecommerce sites and have a decent number of plugins installed. On those sites I simply replaced your plugin with WPFORMS SMTP instead.

I saw your plugin was having an issue with our MainWP central management account which has very few plugins on it (as it is dedicated to MainWP). It is having a beef with MainWP dashboard plugin or one of the subordinate plugins – but MainWP doesn’t have a built in SMTP mailer. It calls the host’s PHPmail or wp_mail if a WP site isetup for it.
https://kb.mainwp.com/docs/my-mainwp-dashboard-not-sending-emails/

But this is an issue which covers a range of plugins, and has something to do with the recent Post SMTP upgrades. I thought it may be the change to PHP 8 but this site is still using PHP 7.4, however it will be on PHP 8 by the time you respond to this.

• This reply was modified 2 years ago by Garth Penglase.
• This reply was modified 2 years ago by Garth Penglase.
• This reply was modified 2 years ago by Garth Penglase.

@gpenglase

Can you share the mailing socket you are using with Post SMTP; also, can you share the error you are getting on your Main-wp and child websites?

Thanks

@haseeb0001

Hi
I post a ticket few days ago on your website but I get no answer …

@spiwee reply sent, please check.

The error is “Postman: wp_mail has been declared by another plugin or theme” in the WP Admin dashboard, on all the sites that we’ve experienced this with. And these siteas are all long existing sites on which none of them were using an additional SMTP mailer. This simply appeared after Post SMTP updates.

We’re not getting an error with these or any plugins. And I’m pretty sure that sometimes they are still sending mail through fine,. The ones that weren’t we switched out the plugin.

I assume that by “socket” you mean Sendgrid API – that’s what we use in 99% of our sites.

@gpenglase

Can you please create a separate ticket for your issue and share the Diagnostic test report of the Post SMTP plugin?

Also, let me know any new plugins you installed on your website recently. If yes, please share the name of the new plugin.

Hi @haseeb0001

Since the last update I no longer have the alert message and I receive emails well So the problem is solved
(I did not receive any emails from your support on your site following the progress of the ticket, which is why I did not answer because I did not see that the ticket was being processed)

Thanks

@spiwee Thanks for the confirmation.

Do let us know if still there is any thing else we can help you with.

Thanks and regards,
Support Team – WPExperts