Should I still send multipart/alternative emails?

Email marketer from Campaign Monitor shares that HTML is good but alt-text can help a user understand the content of an email if they have images turned off.

Email marketer from Reddit responds that alt text is essential because if a user can't load images they still understand your content because of the alt text.

Email marketer from Mailjet Blog explains that providing a text part ensures accessibility for visually impaired users who rely on screen readers. A text version allows them to understand the message even if the HTML is not properly rendered or accessible.

Email marketer from EmailOctopus Blog shares that multipart emails ensure that your message can be read on various devices, that your emails can be understood by people with disabilities using screen readers, and improve your sender reputation.

Email marketer from Litmus responds that while HTML email support is widespread, some older or less capable clients may still benefit from a plain text alternative. It ensures the message is readable regardless of the client's capabilities.

Email marketer from Stack Overflow answers that providing a text part is still beneficial for spam scoring, accessibility, and older email clients. While most modern clients support HTML, ensuring a readable text version remains a good practice.

Email marketer from Sendinblue Blog responds that providing both HTML and text versions helps with deliverability. Some spam filters analyze the ratio of HTML to text, and a text-only version can sometimes improve spam scores.

Expert from Email Geeks shares that you can choose your content-type priority in multipart/alternative so theoretically you can send text/plain for MUAs that can render it and text/html for the rest.

Expert from Spam Resource explains that including a plain text version alongside HTML is still recommended. They state that many email clients will display the plain text version if they cannot render HTML, and spam filters often analyze the plain text version.

Expert from Email Geeks explains that Screen readers speak HTML just fine, and the vast majority of emails that are multipart text+html have laughably bad text versions.

Expert from Word to the Wise responds that a small but important segment of users still use text-only email clients. They explain that these users will not be able to view any HTML, so providing a plain text version ensures they can still read the message.

Expert from Email Geeks is giving a client advice to not send multipart/alternative and just send text/html emails. It's not necessarily a deliverability issue, but it's about doing the right thing. They explain that it used to be a best current practice, but it is not really anymore.

Documentation from Oracle Help Center shares that multipart MIME messages are helpful when you want to send a message with multiple, related parts. This could be an HTML message and a plain text alternative for compatibility.

Documentation from Mozilla explains that multipart messages are useful for sending multiple, related items in a single email. For example, to send an HTML version and a plain text version.

Documentation from ietf.org (RFC 2046) explains that the Content-Type header field is used to specify the media type of the data contained in the body of a message. In the case of multipart messages, it defines the different parts and their types.