Subject: Email Sending/Receiving Issue on Hostinger – Order Notifications Not Working

Hello everyone,

I am experiencing difficulties with sending and receiving order emails on my website hosted with Hostinger. The system is generating invoices correctly; however, no emails are being delivered to either the admin or customers.

Here are some details about my setup:

Hosting provider: Hostinger.com

Current PHP version: 7.8.4

Debug mode: Enabled

Error logs: (Please find the attached/error log below for your review.)

I would appreciate your help in identifying and resolving this issue.

Thank you!

Hostinger SMTP and vsadmin email setting Info
=====================

Store email: saif@eformics.com
Email from: Eformics Order
Email SMTP Service: Use PHP Mailer
SMTP Username: saif@eformics.com
SMTP Password: entered and set to yes
SMTP Host: smtp.hostinger.com
SMTP Port: 465 or 587
SMTP secure: SSL
Email Format: HTML

emailtofriend.php is uploaded to the root.

include.php setting:
=========================

// Email Options
$useaskaquestion=TRUE;
$useemailfriend=TRUE;
$htmlemails=TRUE;




Error log after generating the invoice on thanks.php page
==========================================================
POST parameters
POST: emailorder : 511
POST: thesessionid : 038c69aa9d058339f17ec307fb
GET parameters
2025-06-29 02:35:57 SERVER -> CLIENT: 220 ESMTP smtp.hostinger.com
2025-06-29 02:35:57 CLIENT -> SERVER: EHLO eformics.com
2025-06-29 02:35:57 SERVER -> CLIENT: 250-smtp.hostinger.com250-PIPELINING250-SIZE 48811212250-ETRN250-AUTH PLAIN LOGIN250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250 CHUNKING
2025-06-29 02:35:57 CLIENT -> SERVER: AUTH LOGIN
2025-06-29 02:35:57 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2025-06-29 02:35:57 CLIENT -> SERVER: [credentials hidden]
2025-06-29 02:35:58 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2025-06-29 02:35:58 CLIENT -> SERVER: [credentials hidden]
2025-06-29 02:36:00 SERVER -> CLIENT: 535 5.7.8 Error: authentication failed: (reason unavailable)
2025-06-29 02:36:00 SMTP ERROR: Password command failed: 535 5.7.8 Error: authentication failed: (reason unavailable)
SMTP Error: Could not authenticate.
2025-06-29 02:36:00 CLIENT -> SERVER: QUIT
2025-06-29 02:36:00 SERVER -> CLIENT: 221 2.0.0 Bye
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Failed to send mail: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting2025-06-29 02:36:00 SERVER -> CLIENT: 220 ESMTP smtp.hostinger.com
2025-06-29 02:36:00 CLIENT -> SERVER: EHLO eformics.com
2025-06-29 02:36:00 SERVER -> CLIENT: 250-smtp.hostinger.com250-PIPELINING250-SIZE 48811212250-ETRN250-AUTH PLAIN LOGIN250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250 CHUNKING
2025-06-29 02:36:00 CLIENT -> SERVER: AUTH LOGIN
2025-06-29 02:36:01 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2025-06-29 02:36:01 CLIENT -> SERVER: [credentials hidden]
2025-06-29 02:36:01 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2025-06-29 02:36:01 CLIENT -> SERVER: [credentials hidden]
2025-06-29 02:36:03 SERVER -> CLIENT: 535 5.7.8 Error: authentication failed: (reason unavailable)
2025-06-29 02:36:03 SMTP ERROR: Password command failed: 535 5.7.8 Error: authentication failed: (reason unavailable)
SMTP Error: Could not authenticate.
2025-06-29 02:36:03 CLIENT -> SERVER: QUIT
2025-06-29 02:36:03 SERVER -> CLIENT: 221 2.0.0 Bye
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Failed to send mail: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

It is fixed! Thanks, I have entered the wrong SMTP.