Not exactly. An email address can be compared to your home address, only the email address is online. An email can be compared to a letter. Like a letter is sent to your physical address, an email is sent to your email address.
Amy Macdonald is the name of a Scottish singer, recording artists and songwriter. Her debut album titled This Is the Life, was released in 2007. She doesn't mention what her favorite cereal is but hailing from Scotland, it could possibly be oats.
An email may not be able to be sent if the email address you are sending the email to does not exist. If the email address does exist, you may not have internet to be able to send the email, or the email address may not be spelled right.