Would you say this_is#oddemail{insert!}$^-=?~@chirpychew.com is a valid email? Test it out here
If you said no than you might be surprised to find out that I registered this email with my hosting service, you can use it for testing if you like (emails might bounce back though because the domain has expired)
If you want more context, have a read of this blog post
When have you been caught by email validation issues?
I remember I once found a bug using sam@sammystutoring.com.au (my tutoring email), the JAVA SPRING framework thought “hmm, .au, you must want an audio file returned” when I tried to log into a mobile app
