Electronic mailing list servers may be set to forward messages to subscribers of a particular mailing list either individually as they are received by the list server, or in digest form in which all messages received on a particular day by the list server are combined into one email that is sent once per day to subscribers. Some mailing lists allow individual subscribers to decide how they prefer to receive messages from the list server (individual or digest).
Surprise: Customer loyalty is the key to success. And you can reward your loyal customers by giving them something for free every now and then. Create a “surprise” email that sends an automated email to your best customers that offers a free yearly license to your software for them to use, a gift card or even a coupon code to redeem a box of cupcakes. It’s a small cost for your business but, the reward is huge!
Use your real email signature: Just like using a real reply-to email address, you want to use real contact information within the email and the best way to do that is to include your contact details in the email signature. Giving your readers the opportunity to contact you or connect with you online is a great way to be personal and build a relationship with them.