Aliases
When you want to send letters from more than one e-mail address or would like to share your account with others, Postful aliases are the way to do it.
Step 1
Click the link for "Aliases" on your home page under Account options.

Step 2
Enter the e-mail address you'd like to use as an alias.

Step 3
E-mails sent from these aliases will be treated as from your primary account. Notices on individual letters will be sent to both the alias and the primary account. General account notices will only be sent to the primary account.