You can do following steps to keep mail from terminating in SPAM; 

• Just utilize each outcry point in turn! Generally, avoid using the phrases to unsubscribe and to be removed in the message body. 
• Never use loads of hued textual styles.  
• Check if your domain name has been boycotted.  
• Spam channels hope to perceive what number of messages you are sending at once  
• On the off chance that you need to convey a fundamental message to numerous gatherings better to utilize BCC work  
• Keep the length of your subject under 45 characters.  
• Abstain from utilizing spam sifting words, accentuation or capital letters message in your substance/subject.

 Given are the four sorts of email promoting efforts that are basic and important:

• Marketing Offer: When you wish to drive direct reactions, promoting offers are the best. Advertising offers are acceptable at showing your most recent stocks and persuading the intended interest group to make a buy. Advertising Offer email crusades are the best fit if your campaign offers a markdown or any extraordinary advancement of your items or administrations as it incorporates a direct CTA for individuals to navigate to your site.
• Announcement: Announcement Mails are utilized to report another item, highlight, or administration. They're valuable in keeping your clients refreshed about your new dispatches.  
• Occasion Invitation: Event Invitation ought to be utilized for improving attention to your occasion. These messages are sent to support your current and potential client to go to an occasion.
• Bulletin: It can be characterized as a consistently dispersed email crusade that refreshes your objective clients around one principle theme. At the point when you wish to keep in contact with your normal clients, bulletins are the best choice to use as they're very acceptable at driving back the traffic to your site.