MyMail is wonderful WordPress plugins have been using over 6 months with SendGrid SMTP server. I have found almost 90% inbox rates and also haven't spent the single penny but plugin cost. I can send 12K emails per month and I think which is enough for me right now. This is very user-friendly you can set up autoresponder as well as import and export list whenever you want. If you are comfortable with google analytics then you could get more data. I am 100% satisfied with the result. My yesterday result :
		
		
	
	
		
	
Marketing & Transactional Email Service | SendGrid
MyMail - Email Newsletter Plugin for WordPress - WordPress | CodeCanyon
	
		
			
		
		
	
				
			
	Marketing & Transactional Email Service | SendGrid
MyMail - Email Newsletter Plugin for WordPress - WordPress | CodeCanyon
			
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