How to change mail from address in header

Changing the From address in an email header can be a bit tricky, as it depends on the email client or server you're using. Here are some general steps and options:

Using an email client:

Outlook: Right-click on the email you want to modify, select "Move" or "Copy", and then choose "Edit" from the context menu. In the "From" field, enter the new email address you want to use.
Gmail: Log in to your Gmail account, open the email you want to modify, and click on the three vertical dots at the top right corner. Select "Edit" from the dropdown menu. In the "From" field, enter the new email address you want to use.
Thunderbird: Open the email you want to modify, right-click on the "From" field, and select "Edit". Enter the new email address you want to use.

Using a mail server:

Sendmail: You can modify the From address by editing the sendmail configuration file. For example, you can add the following line to the /etc/sendmail.cf file: FromLine "From: [email protected]". Then, restart the sendmail service.
Postfix: You can modify the From address by editing the main.cf file. For example, you can add the following line: mydestination = [email protected]. Then, restart the postfix service.

Using a programming language:

Python: You can use the smtplib library to send an email with a custom From address. Here's an example:
```
import smtplib
from email.mime.text import MIMEText
```

msg = MIMEText('Hello, world!') msg['From'] = '[email protected]' msg['To'] = '[email protected]' msg['Subject'] = 'Test email'

server = smtplib.SMTP('smtp.example.com') server.sendmail('[email protected]', '[email protected]', msg.as_string()) server.quit()

1. **Java**: You can use the `JavaMail` API to send an email with a custom `From` address. Here's an example:
```java
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress("[email protected]"));
msg.setRecipient(Message.RecipientType.TO, new InternetAddress("[email protected]"));
msg.setSubject("Test email");

Transport.send(msg);

Remember to replace [email protected] and [email protected] with your actual email addresses.

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How to change mail from address in header