Dear all,

I'm having issues getting my email to display correctly in Outlook Web App. The used template is 'Beretun Receipt'.

OWA is giving me a hard time to display the header correctly, in all other clients (Gmail, Outlook/Hotmail etc..) the template renders correctly.
I've only replaced the H1 title in the header with my logo (png) and the changed the background-color from blue into white..

As a reference I've included a screenshot of the header when correctly display (white background, and logo shown).
https://www.alexbosnjak.com/screenshots/Screenshot4.png

Issues:
1. When I receive the email, in the preview mode, the background-color of the header is black, but nowhere in the code I've declared that color.. https://www.alexbosnjak.com/screenshots/Screenshot1.png
2. When I 'open' the email in a new window, the black header background color changes into - the correct - white background color, but the alt text of the image isn't showed. https://www.alexbosnjak.com/screenshots/Screenshot2.png
3. When I enable images, the black background color still remains and the logo is shown. (This is in the preview window) https://www.alexbosnjak.com/screenshots/Screenshot3.png

I've included the top part HTML, if needed I can post the entire code.

<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<style type="text/css">
/* CLIENT-SPECIFIC STYLES */
body, table, td, a { -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; }
table, td { mso-table-lspace: 0pt; mso-table-rspace: 0pt; }
img { -ms-interpolation-mode: bicubic; }

/* RESET STYLES */
img { border: 0; height: auto; line-height: 100%; outline: none; text-decoration: none; }
table { border-collapse: collapse !important; }
body { height: 100% !important; margin: 0 !important; padding: 0 !important; width: 100% !important; }

/* iOS BLUE LINKS */
a[x-apple-data-detectors] {
    color: inherit !important;
    text-decoration: none !important;
    font-size: inherit !important;
    font-family: inherit !important;
    font-weight: inherit !important;
    line-height: inherit !important;
}

/* MEDIA QUERIES */
@media screen and (max-width: 480px) {
    .mobile-hide {
        display: none !important;
    }
    .mobile-center {
        text-align: center !important;
    }
}

/* ANDROID CENTER FIX */
div[style*="margin: 16px 0;"] { margin: 0 !important; }
</style>
</head>
<body style="margin: 0 !important; padding: 0 !important; background-color: #eeeeee;" bgcolor="#eeeeee">

<!-- HIDDEN PREHEADER TEXT -->
<div style="display: none; font-size: 1px; color: #fefefe; line-height: 1px; font-family: Open Sans, Helvetica, Arial, sans-serif; max-height: 0px; max-width: 0px; opacity: 0; overflow: hidden;">
[Naam], hartelijk dank voor uw aanvraag. Hierbij de bevestiging voor het {{ action }}.Uw kenmerknummer is: {{ reference }}.  
</div>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td align="center" style="background-color: #eeeeee;" bgcolor="#eeeeee">
        <!--[if (gte mso 9)|(IE)]>
        <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
        <tr>
        <td align="center" valign="top" width="600">
        <![endif]-->
        <table align="center" border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width:600px;">

            <tr>
                <td align="left" valign="top" style="font-size:0; padding: 35px;" bgcolor="#fff">
                <!--[if (gte mso 9)|(IE)]>
                <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
                <tr>
                <td align="left" valign="top" width="300">
                <![endif]-->
                <div style="display:inline-block; max-width:50%; min-width:100px; vertical-align:top; width:100%;">
                    <table align="left" border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width:300px;">
                        <tr>
                            <td align="left" valign="top" style="font-family: Open Sans, Helvetica, Arial, sans-serif; font-size: 36px; font-weight: 800; line-height: 48px;" class="mobile-center">

                                <a href="https://www.zorgtoeslag.online/?utm_source=bevestiging&utm_medium=email&utm_content=logolink" style="text-decoration: underline; !important; color:#67B6DB;"> <img src="https://zorgtoeslag.online/Zorgtoeslag_Online_Logo.png" width="300px" style="border: 0px; display: block;" alt="Zorgtoeslag Online"/> </a>

                            </td>

                        </tr>
                    </table>
                </div>
                <!--[if (gte mso 9)|(IE)]>
                </td>
                <td align="right" width="300">
                <![endif]-->

                <!--[if (gte mso 9)|(IE)]>
                </td>
                </tr>
                </table>
                <![endif]-->
                </td>
            </tr>

Looking forward hearing your comments on it :)