We think email is *the best* way to publish online. You have it at home, work, and on your mobile device. It's integrated into all the applications you already use. And you can attach any and all files for easy posting.
And with Posterous, your email can do even more.
When you send an email to Posterous, the domain you send the email to determines where on Posterous it goes. The domain is the part of the email address to the right of the "@" symbol.
When you email post@posterous.com, your email will be published to the primary site on your Posterous account. If you only have one site, that's your primary! If you have more than one, it's the first one you created. You can set which site is your primary on your manage page.
You can also choose which Posterous site to post to by using that site address as the domain in the email address. For example, if you email post@forums.posterous.com, it will post to the site http://forums.posterous.com. If you email post@yourfamilysite.posterous.com, your email posts to http://yourfamilysite.posterous.com.
The username in the email address determines where your email gets Autoposted. The username is the part of the email address to the left of the "@" symbol.
Normal posts created by emailing post@posterous.com autopost to all your other sites. You can also specify where you want to post via the email address you send to.
You can email to specific service types on your account. Do you want to update your Twitter but not your Facebook? You can do that.
You can use the following service names to email to: twitter, facebook, flickr, picasa, blog, blogger, tumblr, youtube, vimeo, friendfeed, delicious, laconica, identica, livejournal, plurk, shopify.
Do you have multiple sites of the same type? For example, do you have two Twitter accounts but you only want to autopost to one of them? Email #text@posterous.com to send only to sites where the url contains that text.
No matter where you email, we'll always update your Posterous site. Posts on the external sites will have a post.ly url that links to the Posterous post.
Do you want to tie specific sites on your account with specific Autopost sites? You can't do that yet, but you can control it using the email address you post to. The username and domain you email to post are independent.
Do you want contributor posts to go to your autopost sites? Right now Autopost is based on the user posting, not the site. When you post to your site, we update your other sites. When someone else contributes to your site, we update their autopost sites. We'll be adding site based autopost soon.
We do not autopost private posts, or posts created on private sites.