Not Sending Emails Anymore – Authentication Failed

Did you install the better email logger extension?

I did then I removed it but still it’s not working even after removing the “Better Email Logger”

250-AUTH LOGIN PLAIN
250 SIZE 53477376
AUTH PLAIN
334
AGluZm9AbWF0dC10aG9tYXMtcGhvdG9ncmFwaHkuY28udWsATiFrb25ENzAw
535 Authentication Failed

Don’t know if that helps??

Just put the login details or api key again and save.

Yep I have gone through the Setup wizard for the SMTP plugin again and still have that’s the error I’m getting after removing the Email Logger plugin

Just tried removing the SMTP plugin as well as resetting everything, however still having the same Authentication Failed Not found, check status column for more info.

Hi @mattthomas-photography,

It sounds silly, but have you double checked the password your trying definitely works? It might be worth testing in a mail client like Thunderbird.

It’s also worth nothing, a lot of providers that have 2FA on accounts will need an “app password” for something like SMTP. I’m not sure specifically about Zoho, but do you have two factor enabled?

Kind Regards,
Tim

Just logged into my Zoho mail using the email and password I entered within SMTP and no I don’t have 2FA active

Hi @mattthomas-photography,

Under ‘Show All Settings’, can you locate the ‘Authentication’ dropdown. Please change this from ‘Plain’ to ‘Login’ and let us know if this makes any difference?

Kind Regards,
Tim

Nope still failed

Hi @mattthomas-photography,

Can you share your diagnostics log with us, from Post SMTP?

Kind Regards,
Tim

This what you need?

Mailer: postsmtp
HostName: matt-thomas-photography.co.uk
cURL Version: 7.71.0
OpenSSL Version: OpenSSL/1.1.1d
OS: Linux srv.whitespot.co 3.10.0-962.3.2.lve1.5.35.el7.x86_64 #1 SMP Tue Apr 14 15:56:28 EDT 2020 x86_64
PHP: Linux 7.4.14 C
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=No, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 5.6 en_GB UTF-8
WordPress Theme: Uncode Child
WordPress Plugins: Akismet Anti-Spam, Contact Form 7, CAOS, Smash Balloon Instagram Feed, LiteSpeed Cache, Post SMTP, Rank Math SEO PRO, Rank Math SEO, Uncode Core, Uncode WPBakery Page Builder, Uncode Wireframes, WPBakery Page Builder (Visual Composer) Clipboard, WooCommerce Bookings, WooCommerce Customer/Order/Coupon Export, WooCommerce Deposits, Follow-Up Emails, WooCommerce Stripe Gateway, WooCommerce Product Add-ons, WooCommerce, Asset CleanUp Pro: Page Speed Booster
WordPress wp_mail Owner: /var/www/vhosts/matt-thomas-photography.co.uk/httpdocs/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): wpcf7_phpmailer_init, FUE_Sending_Mailer::set_dkim, PostsmtpMailer->phpmailer_smtp_init
Postman: 2.0.20
Postman Sender Domain (Envelope|Message): matt-thomas-photography.co.uk | matt-thomas-photography.co.uk
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtp:tls:login://smtppro.zoho.eu:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 4162 | 39

Hi @mattthomas-photography,

Yes, thank you. Can you try changing the following?

• Outgoing Mail Server Port to 465
• Security to SMTPS
• Authentication leave as Login

Let me know how that goes.

Kind Regards,
Tim

Hey Tim,

So it looks like the link I visited before had the wrong server name as somehow had it for .eu at the end (as you can see from the report above)

Change the above as you mentioned and then the server to smtppro.zoho.com and managed to get a test email through. I’m just going to try and do a test order through my store to see if all the emails populate