diff --git a/addons/mail/data/mail_demo.xml b/addons/mail/data/mail_demo.xml
index ef4487d3336..b64b0356dbe 100644
--- a/addons/mail/data/mail_demo.xml
+++ b/addons/mail/data/mail_demo.xml
@@ -133,56 +133,69 @@ Sophie]]></field>
         <record id="message_video1_attachment2" model="ir.attachment">
             <field name="model">ir.attachment</field>
             <field name="datas">
-                /9j/4AAQSkZJRgABAQEASABIAAD/2wBDABALDA4MChAODQ4SERATGCgaGBYWGDEjJR0oOjM9PDkz
-                ODdASFxOQERXRTc4UG1RV19iZ2hnPk1xeXBkeFxlZ2P/2wBDARESEhgVGC8aGi9jQjhCY2NjY2Nj
-                Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2P/wAARCABkAGQDAREA
-                AhEBAxEB/8QAGgAAAwEBAQEAAAAAAAAAAAAAAAQFAwIBBv/EAD0QAAEDAgMDCAcHAwUAAAAAAAEA
-                AgMEEQUSsiExchMzNDVBUXFzIjJhkbGzwRQVJGKBwtElg6FCUlPh8P/EABoBAQADAQEBAAAAAAAA
-                AAAAAAADBAUBAgb/xAAwEQACAQIDBgYBBAMBAAAAAAAAAQIDBBEyMwUSMUFx8BMhNFGx0cEUgZGh
-                I0LhNf/aAAwDAQACEQMRAD8A+55QFzgA4lpsbDttf6qqoN8D0e5z/sf7l3w5HMQz/kd7k8OQxOJX
-                SOheIgWyFpDXFtwDbYV1U5DETLcVFwySnDQLNuHOO/Zc227LBevDGJ1kxE2DpYiA6+xrgSMzT3dw
-                d7wm4xiZtZiwLS+andZrb+g4XdcZuzdbNb22TcGINbi4YbzU7nZTuY7a6+zs3Af5HtTwxidPbihe
-                MksDWAvuCxxJF/R7O7f4puDE8DcVLiXSwZc7TZrHXDRa43du33puDEoZ/wAjvcvHhyGIZ/yO9yeH
-                IYgx4e27d1yP1BsvLWDwZ0Uyh9VVB2W4y5Mx2XLf+h7lIm1FYHBSsldTcoMkBIaXNsHG/d2+Kb7X
-                mzkvJNoq0ji6khcd5YCfcplwBtddAXQBdAF0AXQBdAF0AXQCWI17qIR5YhIX3vd+WwFvYe9V69wq
-                LimscSalR8TF48DWm5t3mP1FcnmIkZfZYqmSflWkjlG7jbc0W+JUkEnHzB6cMpizKWOItl9Y7QvW
-                5FjFoajYIo2xsFmtAA8F7OHSANqANqAEBnJPFE9jJJGtc82aCdpXUmzjkk8GabVw6Iy4i3NPFGwi
-                WJjnAuHom2z4leazdKm5ik41Km4FNVzS4Uahwj5UZ9wOW4cQNl/YvNtN1YRk+Z6uEqTaXIm108lR
-                SU8kuXOTKDlFhscB9FS2kt2pBL3+ixYycqcm++JYpubd5j9RVipmKyPafnKjzBpapafAM3Uhwxkq
-                oo6hkD3ESP8AVGU2O/t/Qrqi2sTy5pPd5my4eidh1RPNV1LJZM7WhrmjKBluXbPbuClqRUUsCClN
-                ybxGMQLhRvLXFpuNrTY7wvNNYy8z3VbUHgGHlzqGEucXEt2lxuSuTzM7T84oUxLpsHFF8wKSGRkN
-                TUR1RVM8mKVEMkmaNoJa3KBb0rb1mW9adSrOL4I0qtOMacWuLFH9Nq/Kk1BXLz0z6FK19QM0PUTv
-                GTW5Q2GlAsXuaXfInz9X0/FNrVfaerDr9Emz9KXfuXKbm3eY/UVNUzECFKwuEU+V7mEzja02PqBW
-                bdJ8SGu2o+Q5RFz6Gnc5xLnRNJPebLsuLPccqEq3rel4h8HKWOmyGWqipb2lQlgk4SL11XwR/F6n
-                q8EVqHGXfuOYgPwb9p3t1BR08xJWyMlGWRn2BrJHtb6FwDsN32P+FnXVWcbqME/Jl22hF27bXeA3
-                iXTYOKP5gWpDIzOqaiOMP65quF2pY1prVOr+TVr6Ue+Ri/p1X5MmoLSvfTPoZ9r6jv3GaLqJ3jJr
-                cobDSgWL3NLvkT5+r6fim1qvtPVh1+iTZ+lLv3LlNzbvMfqKmqZiBClZzU3njQFatiC4yjdAB930
-                1/8Aib8AkuLJIZUJ1vW9LxD4OUsdNkMtVFOwUJYJWF2FbVlxsAyPb+r1NV4IrUMz79xyvymieQbg
-                lu2/5gvFLMiStkZIf61B/a+Ysq89bDv3L9r6Z98h3Eh+Ng4o/mBbEMjMypqI4w/rmq4XaljWmtU6
-                v5NWvpR75GL+m1fkyagtK99M+hn2vqO/cYoR/QneMmtyhsNKBYvc0u+QhP1fT8U2tV9p6sOv0SbP
-                0pd+5cpubd5j9RU1TMQIUrebm88aArVsQXGU8wOpfPA6ORrAIWta0gb9ltvuVW3ruvjJor2VxKvF
-                4rgc4g9kWJ0z3uDWBzSSdw2OV1zjCk3J4ElWUYVE5PBFCCop6jNyMjH5bXt2KCFSM8rxLji0k2uJ
-                EADm14IBBbFsPG5c2l5W779iPZ+s+/cdYAMBi2D1W6gu2eSPQ9XnGXUSf61B/a+YqF562HfuWrX0
-                z75DmJW+2wW3Zo/mBbEMjMypqI5w+33zU7rZTqWNaa1Tq/k1a+lHvkYv6bV93IyagtK99M+hn2vq
-                Biit9xO3XvJrKhsNKBYvc0u+QhP1fT8U2tV9p6sOv0SbP0pd+5cpubd5j9RU1TMQIUrObm88aArV
-                sQXGUTwGojhkkjeSHSloZs37CsmwqRWMHxZT2VSm6Mp4eWJ1j22UeDfqrd/6b9/wyLaeX+Pya4Hz
-                1Tws/cqmzOEv2PpLz/UnzSvZUPY02bKGhwtvsSR8VLtWtJYUuWGP9/8ADGs60o3saa4PH4ZVZ1DH
-                wt1BXrPJHoXLzjLqThKyR9GGkkxuja7Z28oFmXNSM7yO6+H/AEmsqkZ20t3liv6KGJdNg4o/mBbc
-                MjKFTURxh/XNTwnUsa01qnV/JrV9KPfIxf02r8mTUFpXvpn0M619QMUR/oTvGTWVDYaUCxe5pd8h
-                Cfq+n4ptar7T1Ydfok2fpS79y5T827zH6ipqmYgQpWc1N540BWrYguMpJw3ptN5v7Svn7TXQ2R6G
-                XV/gcx7nR4D6rVv/AE37/hmdtPL/AB+TXA+eqeFn7lU2Zll+x9Jef6k2p6W3/wB2lNraq6flmBa/
-                +jT6P4ZXZ1DHwt1Badllh0NK74y6/kkU/SGefHrCwo+qXUj2R6ap1fwijjZIeHNJa4NaQR2EOut2
-                vOVO3lKPH/qKd7Jwi5R4pfk4wRznVz3OJc4xXJPacyy9ntynJs2HJytqbfsvgyqZhDWz5gTyjXsF
-                u8uH8K/tCtGFHcfFozaFaNO6jF82O0PUTvGTW5LDSgXr3NLvkT5+r6fim1qvtPVh1+iTZ+lLv3Ll
-                PzbvMfqKmnmIBarhmeJGxxhwdIHg5gP9IH0U1GoocSOrBzWCEKTDquCoikdE0hj8xs8dxH1WZQtn
-                TqKbYsYO3t3Slxbx+DfEqWqrHgshDdg3vHt/lXbnCtS3F74lW8tpV1hF9+Zph0FTSPlc+EHOGgAP
-                HZf+VBaUvAT3nxNWvVVTDAUlw6sknDxE0AdheEvaX6ialF8sDNo0JU7qNdvyWPw/sdEdQMNZTch6
-                QAF847DdW7eapKKfItV/8jeHMRhw2sZK1xibYSNf647HA/RZytmqyqY+WOJ5sYu3ozhLi23/AChr
-                Eaeqqz6EAHogbXjvutCtJVKMqa4v7RXuqEqsWlz+znDqWqpJnSPhBuwNADx3qpa0fBbcnxL29/hh
-                T5pJfwjKqoKuecyNhaBmJ2vHaV7vYfqN3dfAofp5fqIVcfJPEbp4qmLDjTGAFxzbQ8drifqprZql
-                CMXyL1w/Fba5k/7srM7rxtyuJIHKbrlU61CdSrvuXljiQ2MZW7qObx3sMP7+y3A1zY/TFiXOda97
-                XcT9Vbk8XiSDKsnAQAgBACAEAIAQAgBACAEAIAQAgBACAEAIAQAgBACAEAIAQAgBACAEAIAQAgBA
-                CAEAIAQAgP/Z
+                /9j/4AAQSkZJRgABAQEASABIAAD/2wBDAAUDBAQEAwUEBAQFBQUGBwwIBwcHBw8LCwkMEQ8SEhEP
+                ERETFhwXExQaFRERGCEYGh0dHx8fExciJCIeJBweHx7/2wBDAQUFBQcGBw4ICA4eFBEUHh4eHh4e
+                Hh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh7/wAARCABQAGQDAREA
+                AhEBAxEB/8QAHAABAAIDAQEBAAAAAAAAAAAABgUHAAMEAgEI/8QATBAAAQIEAQYHCA8GBwAAAAAA
+                AgMEAAEFBhIHERMis7QUMjQ2QnN0IzE3UnJ1ssIVFhchNVRiY3GCkpOxw9IkJiczQVFDVWGDosHi
+                /8QAGwEAAgMBAQEAAAAAAAAAAAAABQYABAcCAwH/xABAEQABAgMDCAgDBQcFAAAAAAAAAgMEBQYB
+                EjUHFDIzNEJy8BMiMVJxssLSESE2QXORksEVIySBgqKzobHD0eL/2gAMAwEAAhEDEQA/AP1mLpMl
+                VgTTWM0VNGeAOlgx/gcLyIVa9A9jdwhT4q7+7jvMXjjpLDOET+Kr/dxMxePvSWHFUlHq1McpU8VE
+                HhoqC3WJHGAKYNQ/ojtEE8fL4YUbZRUJKptXtCSQkOFGRiusefSZwmZ4NfUwDHvmJL5uFvfKmAVn
+                9NMBXxzworAZBp0D8TxAXl9cImauEv2HK3bZTBNA3VUoa2jRQkp+zLBjXkYabocTR6bB8vBEzQl8
+                8IoZTQQMlajQl19CpLOLVbMS+OeDocQA/wCYS8f3pmJL50PE8oarkJN6hRUGoKOcaajZYzMNJ3Do
+                eJx/LiZoS+eE0MoxOFDXqNGkhN2iphSbLYxRDBpA4nTzH9uJmhL424RP4qv93FXMXj70lhnCJ/FV
+                /u4mYvE6SwxiuDpElUJywyUNOf0gUxn6MeDram1XbToMySBzcFfTV0EiDQ8G0xamkNH/AMB9iLyF
+                rQwi4ch26nziiSeBNtSFDBuayEhTWPH4nT8uJna2+us83+o2taCxLYWNa2qY4U45tUzP7EE0aBCU
+                xR6EMxRCGYohDMUQhmKIQzFEIZiiEMxRCA6/brcW1JnJCmpPFHMjmUzc6GQCGHP0Dz8eAU4niJYt
+                pC0X74Slsrz2+qxegTFu8iX7a625xIvW2lBHYRk6DTay9q0n6BGPDUZywnh4iAYPTOLkKhDjHXJa
+                bDsm31GugNqsYaPQz7uesH+se+aMrJY4tBPsGyTFkiyaBIEUAAA8mLRwdUQh814hDNeIQ+xCEa+q
+                1OYOWzR48RQWclgQAz1jnHaELVYea30IVcUSOvHB6AyqXgjp6tT2TdQH7FssumawZkVME5B3/LOK
+                81WuXwK4s5l7jMbG5qebdrtUqOT064vwOVQGTmUpAmWhxJrGAauLP0P7x4yCJXMYZl1fas950hEv
+                UtKNwF3dUnlVt2jvn+h4SZVBM9EMxDua4B6kKtet9DHQqEd/2ByjXlvQL6186ZaFu8iX7a625wcj
+                dbaAUdh6ofLqz24NghF6B1ZFkxF44IR3X6a2rTajrrkLxzLuI6IsJTzHPjZs3eAo7QytaL5XXFNp
+                c6HfJuOCwBLEq9WqFx1xnUHvCkEQQWQDQCGgxmvqZ+n7wBF+Oh0MJRcBEtilvrXfJq+iVC2nJorK
+                InIk8xongOWuEeECi+/ZYsszJa0Qq7UH2xjWVtGmKLrKLmSGczWPEZxzFWWWPLssO4K2+wi0OZRO
+                dFM6+n76EXYXZVg2O25s92pXKs6ygVmmPH2lZoAoaCOgEcGZXBx5d+EKSzSIjY+IZXoIHiYwbDEE
+                y4jTWQDrnTcPm57t04ZqswJfAK1O42TNleCRTy328rQNonD4YN1brnvD0BGs8yqN19U3qAeUPEoX
+                j9heobDn+e+W1bvIl+2utucFo3W2gdHYGbrJYGFV0DpdqZ1YO6IngPkqcHJGhC7euC5y4tDHUEln
+                qLOLSo66ypGsqwQMz8YppynOcdv6ay0xqUBq7/CZb/Xh6C8EWNhWCn8RQP8AB8soFhwrfJnLFd9x
+                dkZbR1BeZaLYvSfWPc98UX4H7sONc/5iG2CKMFr7AhNdkWV0b1+2O00WzxdFGfBcQAeopI3UgPP9
+                TPCVUcwimKgZh23OosapBCsLkq1qR8/h6BJlC51Uvr2W+pw/wuyrEiO25s5bK8KVe6lXbxl9NYtG
+                8a/MaLOcMY53COec8bh81vdsEPNXYEvgEmnMcs53yYs7wRq+W+3laBlE4dDBurdc94egI1nmVRuv
+                qm9QEyh4lC8fsL9DYc/z3y2rd5Ev211tzgtG620Do7A3dnIal53DdU4PU/2gie7OILIEfabQsX+X
+                IegMR/TWXIXUoDl3+Ey3+vD0F4JMbCsFv4igfYAgWHCuMnUxTuy4jVLCINWWv/uOoKTLRQAJPrnO
+                e+Jr30J2quYHiAlENfH88EVJdr0F6a7Ksrd1yq0Pop+/SjPao+q4fn7VjhTuBK8LfIKcoQ/vVS5/
+                Pst9TjTIXZViFHbc2ctleFKvdSrt4y+msWjeNfmNFnOGMc7hHPOdtxebHu2CHmrsCXwCTTmOWc75
+                LWWP8I1ZfLfbytA2isPhg5Vuue8PQE6zzKo3X1TeoB5Q8SheP2F6hsOf575bVu8iX7a625wWjdba
+                B0dgbu/kNS87huqcH6f7QRPdQc+R6tu6lSVWDtBqAU5FFFEwH3z1MGt9iF2Rzdc4vvLQBKSnr03Y
+                X0iNA1325bsb6ojp0uCLcFkiMz94A1F4a1RbENL1reXcLkyfZhI1Djy7iBhR6zRqvpfY162c6HDj
+                0c5TwQIhI5iKs/crvjQ5DuIQha0aZVwgCyN3gYAYGhT9Q+1Lx8ygW9HJF89wpUPii+e+JmogOSGn
+                ag/ykNsESltmY4P0LFV6x/jDDrlVofRT9+lClVH1XD8/asP07gSvC3yCbKDh9tVKwcXTst9TjTIX
+                ZViFHbc2aLKw+6jXM2DDoD20ZdTOLRvGvzmjTnDWOdwjXmf213F4nsW926cPVW4GvgEinsbJa0cP
+                uRnxcWke7yrAyidghg5Vuuf8PQFKzzKo3X1TeoCZQ8SheP2F6hsOf575bVu8iX7a625wWjdbaB0d
+                gbuvkVS87huqcH6f7QRPdQFsitXY0528YOlCTWfqIg2zjx8wnGbUbGsotXDL01i1k4l0SqWPRNiO
+                pfOjLXrPx8hL8yGassET956FgvKFqPyf8hIZHfhSudS1/FaFnJ9oP/0G71T2sA2rvXLetuWyRSBF
+                8CILBg42AzMPTgplHmr7dyAs0Ll78V/+DK6WmrzNWMwSdWu/5Fj9v4Iaf1SG1GGildmh+D9BqqvW
+                P8YLk+bO3FuJomZm0WZILTwf4nDU4Rp/GsxNTsKZV8k/L8L4To+OYipG90O5fR/YM8oXOql9ey31
+                ONWhdlWJ0dtzZzWT4Uq51J7eMvpnFo3jX5zSJzhrHO4RjznXcXmx7t04eauwJfAI1PY2S9ol/CM5
+                /OPd5VgZROwQwcqzXP8Ah6AnWeZVG6+qb1ATKHiULx+wvUNhz/PfLbt/ka/bXW3OC8ZrbQOjsDV2
+                chqXncN1Tg7T/aCJ7s5XOT7nXQ/OP5KkYrTOLtnWS/6Qf41/7NibLX8Ip+QHrxpNZYIn7z0LEPKH
+                qPyes7sjvwtXOqa/itCzk+1b/ij9TeKp7WP5gi4ecqH0fmHHGUzEEcHrWY3Tf1xBcC/8bhY7XwPs
+                eqQ2wQ/UlqoXg/Qeqn03+P1lb0L4ca+eWW9BGRMfUTfGUMl2Axn3i/8AGgZ5XpqA5FwkaiSwJIqJ
+                GHRMFsca9OYl2DkrrzOnZ70CzVby4ZpbzNvXSizz2HNkfNVS7HSqpmqopTsahl0j00Z/Q7jj8U+t
+                Zp6nlvSCCWvuI8hw3FUAp111XSAZ8LQdNk8HjmsH6Icq3mjENLLIZemtAhyeaswNQssL31iayvBI
+                p5b7eVo+0Th8MN9W657w9ARrPMqjdfVN6gHlDxKF4/YXqGw5/nvlt2/yNftrrbnBWL1toIsD1zUy
+                puAepMmILiu9ByB6cA7yIB6kE5VHIhdMoTKFXFN3EA+2bPuOm1ynPV6egYtnM1jwOg72Aw9eEKTS
+                B2BjERC1/I4o+DVJZI5AP6a13/J/0S9+0S4Lhcpm1paaWEA47oP6aT9cNM9SmZS3NW+/fAVVSB6b
+                JsQyvnrnbYVKrtvun7h1SgPhKaIJiDoOhj/XAemZZ+yEL6demaLOZi3G2otQG6paFzOquLkacgCY
+                5s4E6Cf949KrlypzEodh17l3n8RDlUnegqiZmji+oi//AKoX7xSDGtJ2M3oPsR3YQAJnwoOgeP8A
+                6hgkkS3L22W3NwYpz/GrXc3wpS7Oudu+RXUpyE003qLif7SHQXA/UhLRIHUTRuMv9S/f/H4njR6H
+                JNK4mGf01rWv8yPgTl90ivV6eFrSQDuIJ67kP6HjhymzqI2WOwbemv3oAdRSZ+YQ622973/E1WDQ
+                6/blTXeuaYBaRsCAADoO/jzwu05KrZWta316Y3JdsslUNB76EIR+RBw3LatyVSrk9QpaAJzWUPWd
+                B0zi1VkNbObGbGF6HyE6yRv2TuGj7/UQu+IaBTq7TrIOhHSBNY9PPGLoOmsZ+vBKQOIl8My05uDb
+                O1WR63FN74OlZFz8JXMmTfQLGZAPDeJjOFmZyeKi5hnC3upfvguj2XpIuNcinL/TXLn9/vLUpDNw
+                kxzLdwM111ZhJXPm0ixn3/rQxvK6Vd4vn//Z
             </field>
             <field name="datas_fname">activity graph 2012.jpg</field>
             <field name="name">activity graph 2012</field>
diff --git a/addons/mail/static/src/js/mail.js b/addons/mail/static/src/js/mail.js
index e214168cb25..a95ba1c14c8 100644
--- a/addons/mail/static/src/js/mail.js
+++ b/addons/mail/static/src/js/mail.js
@@ -1255,7 +1255,7 @@ openerp.mail = function (session) {
 
             // check if the message is already create
             for (var i in self.messages) {
-                if (self.messages[i] && self.messages[i].id == message.id) {
+                if (message.id && self.messages[i] && self.messages[i].id == message.id) {
                     console.log('Reload message', message.id);
                     self.messages[i].destroy();
                 }