Why does email get lost which I sent?

There are some possible reasons because the email which you have sent  lost automatically while you hit the send button on email and you don't have any control to know what is the proper reason because the specific email has been disappeared automatically or never receive by the email recipient.

Here we will take a look on some of the possible reason why the specific email has been lost or disappear automatically?

Invalid Recipient Email address

This is one of the common mistake which has been done by the email sender. When we use auto select option in which we press one character from keyboard on the field of "To:"  Email  sender may  insert the wrong email address or when email sender typing the email recipient's address ,at that time sender insert the wrong character so the email recipient's email address become the invalid email address and that is why either the error message with bounce email will generate to the email sender end .if the email recipient with the inserted name does not exist or if the email address which has been inserted by the email sender at "To:" field exist then the email has been successfully received by the recipient of email provider but that email recipient is not the valid recipient to which email sender want to send the particular email.

Email has been send by the Invalid Email Sender

It may be possible that some how email sender's email address has been inserted by the email recipient's email provider in the blacklisted email address. This may be possible because of Spam Emails. Most of the email address are inserted by the email provider in blacklist mainly host by the free email providers like windows live hotmail, yahoo mail, gmail etc.

The Content within the email has been captured as a spam

If the email recipient's spam filter thinks that the content of the email sent by the email sender looks like the spam content then it is possible that the email can not be delivered to the email recipient and spam filter, if enabled at email recipient's side then the particular email will be deleted by the spam filter.

Email has been send by the Spammer

It is also possible that the email recipient's provider depicts you as a spammer and because of this  your email will rejected by the mail server of email provider and your recipient may not be able to view the particular email.

Email Sender's provider has been flag as a spammer

It is occassionally possible if the recipient's email provider reject all the email of the specific email sender's email provider because the recipient's email provider think that the particular email sender's provider is spammer.