Manoj Gupta

HashTags are very useful to categorize and group the content, that said, it is equally difficult to remember the different hashtags. Interestingly if one wants to tag something with the popular hashtags of the current time, it is really challenging. This is very cool idea to have them on keyboard itself for quick access and adding multiple hashtags in few seconds....

This is very much required in mailer domain. Validating the SMTP address even the mailbox full errors, it will be good to have some brief explanation that whether your service is sending email to those smtp addresses in simulation or real way. Also it will be good to have some kind of validation on the server configuration side or email domain around the spam policy as well....