So, if any other machine tries to send an email from the same domain, the receiver’s mail server knows the From email address is forged. It’s like the email sender is telling to the receiver “I send emails from this computer only”. Because the majority of spam emails are sent from forged email addresses, SPF records allow the receiver’s host to verify that the email is being sent from the server it asserts it’s sent from. SPF is an open standard created to stop forgery of From addresses.

SPF (Sender Policy Framework) records.

The sender’s authentication can be done in several ways such as SPF, Reverse DNS Lookup, DomainKeys, or Sender ID: So, when you get your mail server, adjust your authentication records to make sure your emails are delivered to the recipient’s Inbox. Email authentication helps prevent forged emails from being sent from your mail server and thus, helps reduce the amount of spam in the recipient’s Inbox. The disadvantage is that you will need to setup the sender’s authentication records on your server yourself.Įmail Authentication is the effort to include identifiable information into the messages so that the receiver can recognize incoming email message automatically. The advantage is that you will be able to send as many emails as you want without any restrictions. With that said, if you can’t use the SMTP server of your ISP because of email sending restrictions, consider the following solutions:ġ. This definitely hurts your business if you have a large contact database and need to send the message to the whole list urgently. But many ISP now limits the number of email messages you can send per hour or day. You can use the SMTP server of your Internet Service Provider (ISP) and be happy with it. You probably know that the best way to send emails is through the SMTP server.

By addressing those issues, you can increase your email deliverability rate and ensure your newsletter is delivered directly to the recipient’s Inbox. There are also some technical issues that may be overlooked by email marketers but play a significant role in the email delivery process.

That was mostly all about the message content and list building. In one of my previous articles I’ve already touched upon the email filtering and blocking issue and talked about the reasons why the email may be blocked or filtered by ISPs.

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