Setting up SMTP sender header and SSL for email delivery

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1

I’m trying to configure my email sending setup and I’m running into a couple of issues. Can anyone help me out?

  1. I need to know how to set the header.sender field when sending emails through SMTP. What’s the correct way to do this?

  2. I also want to make sure my domain is using SSL to communicate with the email server. How do I set this up properly?

I’ve been searching online but haven’t found clear answers. Any advice or step-by-step instructions would be really helpful. Thanks in advance!

2

I’ve dealt with similar SMTP issues, and here’s what worked for me:

For the sender header, you’ll want to use the ‘Sender’ field in addition to ‘From’. It’s crucial for maintaining proper email authentication. Set it like this: ‘Sender: [email protected]’.

As for SSL, I found that using port 465 with explicit SSL/TLS encryption is more reliable than STARTTLS on 587. Make sure your email client supports this. Also, don’t forget to update your DNS records with proper SPF, DKIM, and DMARC entries. These are essential for avoiding spam filters and ensuring deliverability.

One last tip: test your configuration thoroughly before going live. I use tools like mail-tester.com to check for any potential issues. It’s saved me countless headaches down the line.

3

hey Alex, for the sender header, u can use the ‘From’ field in ur email headers. Just set it like ‘From: Your Name [email protected]’.

For SSL, make sure ur using port 465 or 587 and enable STARTTLS in ur email client settings. Also check if ur domain has proper SPF and DKIM records set up.

hope this helps!

4

When configuring your SMTP setup, I found it useful to clearly define both the ‘From’ and ‘Sender’ fields. Using the ‘Sender’ header lets you specify an address for handling bounces or return messages, which is particularly important if you want responses directed away from the primary sending address. For instance, setting ‘Sender: [email protected]’ alongside ‘From: Your Name [email protected]’ distinguishes these roles. Regarding SSL, my experience shows that employing TLS/SSL—often through STARTTLS on port 587—offers a secure connection. Also, don’t overlook the importance of setting up your domain’s SPF, DKIM, and DMARC records to enhance email deliverability and security.