An email newsletter can be considered a publication if it meets certain criteria. First, it should be published regularly.
Second, it must have a defined editorial mission and content. And finally, the newsletter must provide information that is of interest to its readers.
If all these criteria are met, then an email newsletter can be considered a publication. However, there are some caveats. First, not all email newsletters are considered publications. For example, some newsletters are only sent to a select group of people or are produced for promotional purposes only.
Second, not all email newsletters are created with the intention of being published as a publication. For example, some newsletters may only be used internally by a company or organization.
Ultimately, an email newsletter can be considered a publication if it meets all the criteria listed above and provides valuable information that is of interest to its readers.