No you shouldnt send a followup email to a guy if he hasnt written back its not that its impossible that he was busy or accidentally deleted your email or had an emotional crisis that caused him to abandon dating for awhile.
Once a connection is clear its time to take your online dating into reality even if you have to initiate things to ease anxiety about a first facetoface date keep things simple choose a coffee date rather than dinner or drinks that way if things go well you can look forward to your second date.
If you have a great profile you will absolutely get more replies however if you do not get a reply you can certainly send another message if you like do not waste time analyzing why your message failed just send another there are three types of followups i like to send all of which have worked wonders for me all three are simple as well.
The less well she knows you eg a message to a girl you liked the profile of from an online dating website versus an email to a girl you met yesterday and spoke with for a few minutes the shorter your message ought to be.
Rules 1 and 2 for dating success a list of dos and donts for profiles another way you get can noticedby writing a second email definitely mention that you werent sure about sending the second message but then reddit told you it was cool that way if shes pissed about the second message she wont blame you.
If after a second message you dont get a response just move on it starts to get weird if you send a third one in general though you have to have pretty thick skin as a guy if you do online dating its best just to move on if you dont get a response.
I would definitely send a second email maybe the person accidentally deleted his or her email messages had a computer crash which happened to me once or went on vacation so let a week go by then email a simple polite message saying you would like to touch base and see what happens.
Youll frequently hear me say that online dating is all about the follow up what does that mean in the world of cyberlove there are lots of factors that can keep your match from inadvertently emailing you back busy at the moment you never know what is going on in other peoples lives.
Another suggestion you can say youve enjoyed chatting with them but you dont have the availability at the moment due to work etc compliments also go a long way so dont forget to use good online dating etiquette and mention how you appreciate the positive attention.