Email Marketing Security and Deliverability

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Text, links and buttons will now be larger to better adapt to use on smaller screens. Desktop users will also find improvements, emails designed for mobile devices will also be able to adapt to larger devices.

What does this upgrade mean for Designers? You will finally be able to use CSS media queries to format your email to suit. Not all media queries will be supported by Gmail and Inbox, Google consulted a group of Email Designers and agreed on three key media queries: width, rotation and resolution, which will allow for different formatting output results.

The complete list of CSS rules supported by Google and Inbox is available in the developer documentation .

For example, a CSS like the following applies red to text when the size exceeds 500px. This is a useful way to verify that the query works, so that you can apply the necessary ones:

@media screen and (min-width: 500px) {
.colored {
color:red;
}
}
The huge impact generated by media queries has made another significant innovation go unnoticed: css styles can now be loaded from gambling data india external sheets. This aspect will significantly reduce the weight of sent emails.

Finally, it should be said that Google is not the first provider to adopt CSS Media Queries, but that, despite this, there are still email clients that do not support this technology, such as Outlook.

SPF and DKIM, what are they and how do they work?
Deliverability
Email authentication is a very important part of the message delivery process . To improve the success of a campaign, we recommend authenticating your email using both DKIM and SPF (although you may choose to use just one of the two).

There are good reasons to use these protocols:

Increase your sender reputation: Every email sender has its own reputation generated by ISPs, many email providers use authentication to track the reputation of those who send an email.
Reduce the chance of ending up in the spam folder : Every day, email standards evolve to combat the phenomenon of unwanted email. A domain owner can provide a list of email sources that are authorized to send on their behalf: many ISPs also use these forms of authentication.
mail-tester.com is a free online tool that provides a quality score and a spam score by analyzing the code of a message. Along with the score, it provides recommendations for improving the deliverability of the email.

There are different methods to authenticate email, in this article we will discuss two of them:

SPF (Sender Policy Framework) is a text record inserted in DNS TXT-domain records. This record contains information about the list of servers that have the right to send a message on behalf of a certain domain. The server from which the email is sent can also provide a public list of approved senders.

For example, the SPF record "example.com. TXT "v = spf1 + a + mx -~all" " indicates that only the servers specified in the A and MX records may send messages on behalf of example.com. All messages sent from other servers should be discarded (Fail).

It is important to remember that the SPF record is inherited by subdomains: each third-level domain (or lower) needs its own entries.