diff --git a/apps/encryption/templates/mail.php b/apps/encryption/templates/mail.php
index 3783959b363..3754b4b3e58 100644
--- a/apps/encryption/templates/mail.php
+++ b/apps/encryption/templates/mail.php
@@ -6,9 +6,8 @@
 	<tr><td>
 			<table cellspacing="0" cellpadding="0" border="0" width="600px">
 				<tr>
-					<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
-					<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
-						<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+					<td colspan="2" bgcolor="<?php p($theme->getMailHeaderColor());?>">
+						<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.png'))); ?>" alt="<?php p($theme->getName()); ?>"/>
 					</td>
 				</tr>
 				<tr><td colspan="2">&nbsp;</td></tr>
diff --git a/core/img/logo-mail.gif b/core/img/logo-mail.gif
deleted file mode 100644
index 7c14cb8d1af..00000000000
Binary files a/core/img/logo-mail.gif and /dev/null differ
diff --git a/core/img/logo-mail.png b/core/img/logo-mail.png
index 517b821e4be..80304ae7ec7 100644
Binary files a/core/img/logo-mail.png and b/core/img/logo-mail.png differ
diff --git a/core/templates/internalmail.php b/core/templates/internalmail.php
index 9bb10fb5455..555c063c149 100644
--- a/core/templates/internalmail.php
+++ b/core/templates/internalmail.php
@@ -2,9 +2,8 @@
 <tr><td>
 <table cellspacing="0" cellpadding="0" border="0" width="600px">
 <tr>
-<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
-<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
-<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+<td colspan="2" bgcolor="<?php p($theme->getMailHeaderColor());?>">
+<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.png'))); ?>" alt="<?php p($theme->getName()); ?>"/>
 </td>
 </tr>
 <tr><td colspan="2">&nbsp;</td></tr>
diff --git a/core/templates/mail.php b/core/templates/mail.php
index c2d84184d38..3721d50e27b 100644
--- a/core/templates/mail.php
+++ b/core/templates/mail.php
@@ -2,9 +2,8 @@
 <tr><td>
 <table cellspacing="0" cellpadding="0" border="0" width="600px">
 <tr>
-<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
-<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
-<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+<td colspan="2" bgcolor="<?php p($theme->getMailHeaderColor());?>">
+<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.png'))); ?>" alt="<?php p($theme->getName()); ?>"/>
 </td>
 </tr>
 <tr><td colspan="2">&nbsp;</td></tr>
diff --git a/settings/templates/email.new_user.php b/settings/templates/email.new_user.php
index 8b13ac753eb..054992532d2 100644
--- a/settings/templates/email.new_user.php
+++ b/settings/templates/email.new_user.php
@@ -2,9 +2,8 @@
 	<tr><td>
 			<table cellspacing="0" cellpadding="0" border="0" width="600px">
 				<tr>
-					<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
-					<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
-						<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+					<td colspan="2" bgcolor="<?php p($theme->getMailHeaderColor());?>" bordercolor="<?php p($theme->getMailHeaderColor());?>" border>
+						<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.png'))); ?>" alt="<?php p($theme->getName()); ?>"/>
 					</td>
 				</tr>
 				<tr><td colspan="2">&nbsp;</td></tr>