Send email marketing newsletters at least once in a month

Email is an ephemeral medium. While it can be appropriate for a scientific journal to be published twice a year, for an email marketing newsletter, this will usually be disastrous. Not only do you risk that your subscribers forget about you, if your marketing newsletter is sent very infrequently - less often than at least once per month, it also stands a big chance of being perceived at spam.

The result may be lots of puzzled faces, unsubscriptions and complaints to your ISP calling you a spammer - all that in spite of your subscribers demanding and liking your content. That's why you should send marketing newsletters at least once a month to prevent bulk unsubscriptions and being perceived as a spammer.