Subscribers to a newsletter that will then receive a confirmation email for a link must be clicked. Then, the appropriate newsletter is subscribed. So it can we prevent that addresses with small typos contaminate the mailing list email. “Continue to regular releases are a good and easy way, an existing distributor which pollute” to preserve. Regular connection does not mean this, that a newsletter should be sent every day or every week.
However, a shipment should be at least quarterly to maintain interest by subscribers and to always call in their memories. In some situations, a shipping is however not appropriate or not possible in each quarter. In such cases, there are various tools with which distribution lists can be cleaned before the next shipping takes place. Recourse to such list cleanup tools is mostly reserved customers of the respective email marketing provider. Rule check