diff --git a/weboob/backends/pastealacon/backend.py b/weboob/backends/pastealacon/backend.py
index 2843fc8d..b0fdc34c 100644
--- a/weboob/backends/pastealacon/backend.py
+++ b/weboob/backends/pastealacon/backend.py
@@ -51,4 +51,7 @@ class PastealaconBackend(BaseBackend, ICapPaste):
             self.browser.fill_paste(paste)
         return paste
 
+    def post_paste(self, paste):
+        self.browser.post_paste(paste)
+
     OBJECTS = {PastealaconPaste: fill_paste}
diff --git a/weboob/backends/pastealacon/browser.py b/weboob/backends/pastealacon/browser.py
index a065af42..a62348a4 100644
--- a/weboob/backends/pastealacon/browser.py
+++ b/weboob/backends/pastealacon/browser.py
@@ -17,17 +17,25 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from mechanize import RobustFactory
+import re
 
-from weboob.tools.browser import BaseBrowser
+from weboob.tools.browser import BaseBrowser, BrowserUnavailable
 
-from .pages import PastePage
+from .pages import PastePage, CaptchaPage, PostPage
 
 __all__ = ['PastealaconBrowser']
 
 class PastealaconBrowser(BaseBrowser):
     DOMAIN = 'pastealacon.com'
     ENCODING = 'ISO-8859-1'
-    PAGES = {'http://%s/(?P<id>\d+)' % DOMAIN: PastePage}
+    PAGES = {'http://%s/(?P<id>\d+)' % DOMAIN: PastePage,
+             'http://%s/%s' % (DOMAIN, re.escape('pastebin.php?captcha=1')): CaptchaPage,
+             'http://%s/' % DOMAIN: PostPage}
+
+    def __init__(self, *args, **kwargs):
+        kwargs['factory'] = RobustFactory()
+        BaseBrowser.__init__(self, *args, **kwargs)
 
     def fill_paste(self, paste):
         """
@@ -43,3 +51,11 @@ class PastealaconBrowser(BaseBrowser):
         Returns unicode.
         """
         return self.readurl('http://%s/pastebin.php?dl=%s' % (self.DOMAIN, _id)).decode(self.ENCODING)
+
+    def post_paste(self, paste):
+        self.home()
+        self.page.post(paste)
+        if self.is_on_page(CaptchaPage):
+            raise BrowserUnavailable("Detected as spam and unable to handle the captcha")
+        paste.id = self.page.get_id()
+        self.fill_paste(paste)
diff --git a/weboob/backends/pastealacon/pages.py b/weboob/backends/pastealacon/pages.py
index cca63963..d320d390 100644
--- a/weboob/backends/pastealacon/pages.py
+++ b/weboob/backends/pastealacon/pages.py
@@ -23,7 +23,7 @@ from weboob.tools.browser import BasePage
 from urlparse import urlparse
 import re
 
-__all__ = ['PastePage']
+__all__ = ['PastePage', 'PostPage', 'CaptchaPage']
 
 class PastePage(BasePage):
     def fill_paste(self, paste):
@@ -40,3 +40,14 @@ class PastePage(BasePage):
         """
         path = urlparse(self.url).path
         return path[1:]
+
+class PostPage(BasePage):
+    def post(self, paste):
+        self.browser.select_form(name='editor')
+        self.browser['code2'] = paste.contents.encode(self.browser.ENCODING)
+        self.browser['poster'] = paste.title.encode(self.browser.ENCODING)
+        self.browser['expiry'] = ['m']
+        self.browser.submit()
+
+class CaptchaPage(BasePage):
+    pass
diff --git a/weboob/backends/pastealacon/test.py b/weboob/backends/pastealacon/test.py
index 6847f6f9..d8261096 100644
--- a/weboob/backends/pastealacon/test.py
+++ b/weboob/backends/pastealacon/test.py
@@ -19,6 +19,8 @@
 
 from weboob.tools.test import BackendTest
 from weboob.capabilities.base import NotLoaded
+from weboob.tools.browser import BrowserUnavailable
+from .paste import PastealaconPaste
 
 class PastealaconTest(BackendTest):
     BACKEND = 'pastealacon'
@@ -37,3 +39,14 @@ class PastealaconTest(BackendTest):
         assert p.title is NotLoaded
         assert p.page_url == 'http://pastealacon.com/27184'
         assert u'coucou\r\ncoucou\r\nhéhéhé' == p.contents
+
+    def test_post(self):
+        p = PastealaconPaste(None, title='ouiboube', contents='Weboob Test')
+        self.backend.post_paste(p)
+        assert p.id
+        assert p.title == 'ouiboube'
+        assert p.id in p.page_url
+
+    def test_spam(self):
+        p = PastealaconPaste(None, title='viagra', contents='http://example.com/')
+        self.assertRaises(BrowserUnavailable, self.backend.post_paste, p)