Sign in with the account you use for SkyDrive, Xbox LIVE, Outlook.com, or other Microsoft services.
Sign in with the account provided by your work or school to use with Office 365 or other Microsoft services.
After meeting with a customer regarding the services your company offers, follow up with this letter template thanking them for their time and making yourself available for more information.
Round Lake Publishing, "Business LetterWorks"
For more variety, visit the Round Lake Publishing, "Business LetterWorks" site.