Opencart 3. Sending emails with an incorrect "From" header

Budget: 21000 UAH Deadline: 30 days

I will correct the logic of header formation in the OpenCart 3 mail library (mail.php) and system controllers to eliminate the error in the "From" field and ensure full compliance with your hosting requirements.

What method is currently set up for sending: are you using the built-in PHP Mail function, which automatically substitutes an incorrect Sender, or have you already configured SMTP, but the error persists because OpenCart still tries to send the email on behalf of the client instead of your mail domain?

Budget and deadlines will be discussed in private correspondence. 🤝

Budget: 700 UAH Deadline: 1 day

Good day, I have excellent experience in solving similar tasks in Opencart 3++. I will fix it 100%.

Budget: 3000 UAH Deadline: 2 days

Hello! I will complete your task quickly and efficiently. I will set up the delivery. The cost is 3000 - 5000 UAH.

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Feel free to write, I will start working today. I look forward to collaborating with you!

Budget: 1200 UAH Deadline: 1 day

Hello. I have encountered a similar problem. But I need clarifications. Feel free to reach out.

Budget: 3000 UAH Deadline: 2 days

Hello.
I can check the issue with the incorrect From header on OpenCart 3: I will look at the email settings in the admin panel, SMTP/email domain, hosting configuration, SPF/DKIM/DMARC, and the template/module that sends the emails.
The task here is not just to "change the email," but to find out where the incorrect From is being generated and fix it so that the emails pass the checks of email services correctly.
Estimated time frame: 1–2 days.
Regarding the cost: 2000–5000 UAH, depending on the cause of the problem and access.
Write to me, and we will discuss the details — I will be happy to collaborate.

Budget: 700 UAH Deadline: 1 day

Good day, I am ready to do the work at a discount because I have a new account on this platform without reviews.

Middle Backend Developer (C++, C#, PHP)
Resume
Backend developer with over 4 years of experience. Strong background in C++/C# (multithreading, WinAPI, Direct2D) and PHP (Laravel, Yii2, Magento 2). Experience in creating scalable systems, APIs, and SQL optimization. Practical experience with Elasticsearch and Kibana.
Experience in C++ / C#
• Development of a multithreaded brute-force engine (C#)
• Development of 2D games (WinAPI, Direct2D)
• OOP and systems programming
Experience in PHP
• 4+ years of commercial experience
• Laravel, Yii2, Magento 2, CakePHP
• REST API, high-load systems
• SQL (MySQL, PostgreSQL)
• Redis, Docker, Nginx
• Elasticsearch
• Kibana
Professional Experience
• Middle PHP Developer – HomeAlliance (2025–2026)
• Middle PHP Developer – Dao.Ad (2023–2024)
• PHP Developer – ScrumLaunch, Magnise, Vizualtech
• Junior PHP Developer – AmidaSoftware
Education
Computer Science, NTU Dnipro Expand

Budget: 1900 UAH Deadline: 1 day

I can solve everything today, I work specifically with OpenCart,......,..,.

Budget: 2500 UAH Deadline: 1 day

Good day.

I can conduct an analysis and resolve the issue with the incorrect "From" header and email distribution.

What the work includes:
— checking OpenCart 3
— analyzing email headers
— checking SMTP / mail()
— checking SPF / DKIM / DMARC
— searching for possible spam scripts or infections
— checking site modules and forms
— analyzing Hosting Ukraine logs
— eliminating the cause of the problem

Estimated cost:
— from 2,500 UAH if the issue is with email settings
— up to 5,000–15,000 UAH if there is an infection or external distribution

To get started, I need:
— access to hosting
— access to OpenCart admin panel
— an example of the problematic email or message from hosting. Expand

Budget: 2500 UAH Deadline: 1 day

Hello. I have extensive experience with OpenCart. I have already completed similar tasks. Feel free to contact me.

Budget: 1000 UAH Deadline: 1 day

Yesterday I faced the same problem myself. I can solve it without any issues. I don't need to look for anything.

Budget: 4400 UAH Deadline: 1 day

I can start and do it today. I will assess as I go. I set it at a hundred bucks.

Budget: 700 UAH Deadline: 1 day

Good evening, I can fix it right now, I have been working with OpenCart for 12 years.

Budget: 700 UAH Deadline: 1 day

Hello. I am ready to fix the problem right now. I have good experience working with Opencart 3.

Budget: 1497 UAH Deadline: 1 day

Good afternoon, I can solve this problem, I need to review all the forms on the website and make adjustments to the code.

Budget: 750 UAH Deadline: 1 day

Good day! I am ready to fix it in a day or two. Could you provide the logs? Because I suspect what the problem might be.

Budget: 700 UAH Deadline: 1 day

Good day. This is not quite a mistake, but I will help to correct it. If you have any questions, you can write to me in private messages.

Budget: 1000 UAH Deadline: 1 day

Hello!
According to the description, it seems that we need to check not only the sending of emails in OpenCart but also the settings of the mail domain / SMTP / email headers. An incorrect From often occurs due to improper email settings in the CMS, modifications in the email templates, third-party modules, or a mismatch between the site domain and the sender's email address.

What I will do:
— check the mail settings in OpenCart 3;
— analyze where the From header is being formed;
— check the modules/modifiers that may affect email sending;
— find the cause and make the necessary adjustments;
— after that, I will test the sending of emails to ensure the headers are correct.

Budget: 700 UAH Deadline: 1 day

Hello! I am ready to help with your project. I have extensive experience in development and can implement all necessary components according to your documentation. I guarantee quality execution within the agreed deadlines.

Budget: 1000 UAH Deadline: 1 day

Hello! I have experience working with OpenCart and email settings. I can analyze the issue with the incorrect "From" header, check, and find the reason for the errors occurring.

I have worked on similar tasks in OpenCart, and I can quickly connect and resolve the issue.

Budget: 1000 UAH Deadline: 1 day

I have repeatedly completed similar tasks. Write to me, I will do it in a better way.