email, émail

email or e-mail ( rarely capitalized ) means electronic mail, the message you get on your computer--
Just send an email when you find out about the job.
This mails seems to be spam, but I'm not sure.

Email or émail is a French word, used in English to mean a kind of enamel, or decorative enamel ware--
He wants to see the old piece of émail that's included in the auction.
This émail is a copy of an older work; the technique is not the same.

Now that you know that, you can say--
"The antique dealer sent an email about that piece of  émail you admired."

Note--the French word for "email", meaning electronic mail, is "mél" ( rhymes with mail ), short for "message électronique"--
He has a French pen-pal who sends him "mél".

male, mail

Male or male means a man or boy--the male gender, or a male person--
Check one-- male or female?
Male infants are traditionally dressed in blue.

Mail or mail ( rhymes with male ) means something sent through the post office, or a letter or package carrier--
The mail is late today.
I got a postcard in the mail.
The check is in the mail.

Now that you know that, you can say--
"Most of the people who deliver the mail are male."

Note--a coat of mail is what a medieval knight might wear, made of linked together pieces of metal--
The knight was protected by a coat of mail.
Note #2--email or e-mail stands for electronic mail--
She sent me an email, but I deleted it by accident.
Note # 3--email ( pronounced A mile ) is a borrowed French word for enamel worked on metal--
If you are reading about antiques, don't confuse email with email.