will be mail vs will be mailed

Some examples from the web:

• I'm sure there will be mail.
• In every case composite applications will be e-mail checked before being executed.
• If your machine will be a mail server, you might need to make/var/mail a separate partition.
• And your green card will be in the mail.
• Your check will be in the mail.
• There will be a final mail collection in two hours.
• Caution: The password will be included in mail sent by this site.
• Surely, quickly, you will be receiving unwanted mail.
• 4.1 - The transportation of the purchased products will be through domestic mail.
• All subsequent communications will be via e-mail or mobile phone.
• The police will be opening your mail.
• For departures before 07.00 am the deposit will be refunded by mail.
• But it must be caught on the wing or it will be gone..22.1.91 Mail 11 May 2011Two things have to be learned in this quest.
• As part of the subscription process you will be sent mail to which you must reply to finish subscribing.
• The final report will be sent by mail, fax or e-mail, where available.
• The information will be sent by e-mail to the mail address you provided.
• The mail will be passed through these two programs in order to deliver mail for each domain.
• And your green card will be in the mail.
• Your login will be your e-mail address.
• For those who participate in the events preceding the DVD with the first beta of Windows 7 will be sent by mail.

Some examples from the web:

• Your I-20 will be mailed by express mail service.
• Check payments will be refunded via check, which will be mailed to the LifeWave Member.
• Ask for the books by author, title and subject, and your selections will be mailed to you.
• ICASA's website states that your results will be mailed to you approximately 8 weeks after the test date.
• Posters will be mailed within 2 weeks of the show and no previews or artist information are available at the moment.
• These days our own webstore supplies Coach 2011 Collection Style 005 totes, belts, sneakers, add-ons etc... All purchases will be mailed to your door with cost-free transporting as well as most reasonable price.
• All the packages will be mailed inside another box!!
• Several items will be mailed this week to inform you of these events and the future of research in Chiroptérologie. Enjoy!
• Once the completed acknowledgment of paternity form is submitted to the Office of Vital Records by the hospital, your newborn's Social Security card will be mailed to the address provided.
• The letters will be mailed from Switzerland.
• Your severance checks will be mailed to you.
• NOTE: Your documents will be mailed to the address specified in the questionnaire.
• A separate invoice will be mailed to you.
• The replacement product will be mailed within seven days from the date of feedback.
• The debit cards for Nova Bordelon and Charley Bordelon-West will be mailed out to you.
• Your courseware will be mailed to you seven (7) business days prior to the class.
• Not only that, but a free Full Tilt t-shirt will be mailed to the player who accomplishes such a feat.
• The patient is contacted personally in case of alterations of the test, alternatively, the results will be mailed to her home.
• The executor of the estate, attorney John Zeiner, has told me by email that checks will be mailed no later than May 18, 2015.
• Tickets purchased online will be mailed to your home address, subject to a €2 fee for delivery charges.