How to check user agent in mails
There are a few ways to check the User Agent (UA) in emails:
Method 1: Using the email client's built-in features
- Open the email client (e.g., Gmail, Outlook, Yahoo Mail) and select the email you want to check.
- Look for the "View" or "Details" menu and click on it.
- In the menu, look for an option like "Headers" or "Message Headers" and click on it.
- In the headers section, look for the "User-Agent" header. It should be listed as a string, e.g., "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3".
Method 2: Using a third-party email client extension
- Install a third-party email client extension that allows you to view email headers, such as:
- Gmail's "Email Header Analyzer" extension
- Outlook's "Header Analyzer" add-in
- Thunderbird's "Header Viewer" extension
- Follow the extension's instructions to enable it and view the email headers.
- Look for the "User-Agent" header in the headers section.
Method 3: Using a command-line tool
- Use a command-line tool like
curl
orwget
to fetch the email headers. - Use the
-I
or--header
option to specify the email address and retrieve the headers. - Look for the "User-Agent" header in the output.
Example using curl
:
curl -I -H "Host: example.com" "https://example.com/emails/12345"
This will retrieve the headers for the email with ID 12345
and display them in the terminal. Look for the "User-Agent" header in the output.
Method 4: Using a web-based email header analyzer
- Use a web-based email header analyzer tool, such as:
- Email Header Analyzer (eha.io)
- Header Analyzer (header-analyzer.com)
- Email Header Viewer (email-header-viewer.com)
- Enter the email address and retrieve the headers.
- Look for the "User-Agent" header in the output.
Remember that the User Agent header may be spoofed or modified by the sender, so it's not always a reliable way to identify the client.