The frequency at which marketers send emails is one of the major factors impacting the deliverability of the messages and their ability to arrive in their recipients’ main inbox instead of the spam folder. In order to maintain good deliverability rates, send your newsletter on a regular basis.

Decide on the best frequency for your newsletter based on the content you’re sharing and your subscribers preferences (don’t send too few messages, but don’t send too many either). Then, make sure to be consistent in your sending frequency. The reason behind this is that sending your email campaigns consistently (e.g. weekly or monthly) is a good signal for Internet Service Providers (ISPs) like Outlook. If you don’t respect this regularity in your sending frequency, you risk being seen as a spammer and your messages might not be delivered to your recipients’ inbox.
Here’s what to keep in mind when starting to send emails, and trying to find to right time and frequency for your sendings:
Result
Find the sending frequency that best suits your audience in order to send the right signal to ISPs and improve your email deliverability.