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	<title>Nový Outlook &#8211; Miroslav Šraga</title>
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	<description>Sdílím své zkušenosti s Microsoft 365 a Azure</description>
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		<title>Jak povolit specifický typ souboru v Exchange Online (novém Outlooku)</title>
		<link>https://www.sraga.cz/jak-povolit-specificky-typ-souboru-v-exchange-online-novem-outlooku/</link>
					<comments>https://www.sraga.cz/jak-povolit-specificky-typ-souboru-v-exchange-online-novem-outlooku/#respond</comments>
		
		<dc:creator><![CDATA[Miroslav Šraga]]></dc:creator>
		<pubDate>Thu, 08 Feb 2024 11:42:51 +0000</pubDate>
				<category><![CDATA[Exchange]]></category>
		<category><![CDATA[Exchange Online]]></category>
		<category><![CDATA[Nový Outlook]]></category>
		<category><![CDATA[PowerShell]]></category>
		<guid isPermaLink="false">https://www.sraga.cz/?p=177</guid>

					<description><![CDATA[Setkal jsem se s problémem, že v novém Outlooku a stejně tak v OWA (Outlook Web Access) nelze otevřít specifický typ souboru. V tomto případě byl blokovaný soubor s příponou XML. Vzhledem k tomu, že spousta firem přijímá výpisy z banky právě e-mailem formou přílohy XML, je toto pro uživatele značnou komplikací. Obsah &#160; Řešení, ... <a title="Jak povolit specifický typ souboru v Exchange Online (novém Outlooku)" class="read-more" href="https://www.sraga.cz/jak-povolit-specificky-typ-souboru-v-exchange-online-novem-outlooku/" aria-label="Číst více o Jak povolit specifický typ souboru v Exchange Online (novém Outlooku)">Číst dál</a>]]></description>
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									<p>Setkal jsem se s problémem, že v novém Outlooku a stejně tak v OWA (Outlook Web Access) nelze otevřít specifický typ souboru. V tomto případě byl blokovaný soubor s příponou XML. Vzhledem k tomu, že spousta firem přijímá výpisy z banky právě e-mailem formou přílohy XML, je toto pro uživatele značnou komplikací.</p>								</div>
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Řešení, které doporučuje Microsoft</h2>				</div>
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									<p>Microsoft má <a href="https://support.microsoft.com/en-us/topic/outlook-blocked-access-to-the-following-potentially-unsafe-attachments-c5c4a480-041e-2466-667f-e98d389ff822" target="_blank" rel="noopener">doporučení</a>, použít soubor v jiném formátu, nebo přílohu komprimovat. S tímto se samozřejmě spokojit nechceme, takže na to půjdeme jinak.</p><p>Co budeme potřebovat? Exchange Online PowerShell modul (ExchangeOnlineManagement)</p>								</div>
				</div>
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				<div class="elementor-widget-container">
							<div class="elementor-alert" role="alert">

						<span class="elementor-alert-title">Upozornění</span>
			
						<span class="elementor-alert-description">Níže uvedená nastavení jsou platná pro celý tenatnt. Typy souborů povolujte pouze za předpokldadu, že víte, jaká rizika s tímto mohou být spojena.</span>
			
			
		</div>
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Zjištění, zda je soubor typu .xml blokován</h2>				</div>
				</div>
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					<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-powershell'>Get-OwaMailboxPolicy | Select-Object -ExpandProperty BlockedFileTypes
</code></pre>				</div>
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															<img decoding="async" width="768" height="433" src="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_0-768x433.png" class="attachment-medium_large size-medium_large wp-image-183" alt="Exchange Online, Outlook - blokovaný typ souboru" srcset="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_0-768x433.png 768w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_0-300x169.png 300w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_0-1024x577.png 1024w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_0.png 1115w" sizes="(max-width: 768px) 100vw, 768px" />															</div>
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															<img decoding="async" width="768" height="433" src="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_1-768x433.png" class="attachment-medium_large size-medium_large wp-image-179" alt="Exchange Online, Outlook - blokovaný typ souboru" srcset="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_1-768x433.png 768w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_1-300x169.png 300w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_1-1024x577.png 1024w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_1.png 1115w" sizes="(max-width: 768px) 100vw, 768px" />															</div>
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Zjištění, zda je MIME type pro XML blokován (text/xml)</h2>				</div>
				</div>
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					<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-powershell'>Get-OwaMailboxPolicy | Select-Object -ExpandProperty BlockedMimeTypes
</code></pre>				</div>
				</div>
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																<a href="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3.png" data-elementor-open-lightbox="yes" data-elementor-lightbox-title="exchange-filetype_3" data-e-action-hash="#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTgwLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNyYWdhLmN6XC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wMlwvZXhjaGFuZ2UtZmlsZXR5cGVfMy5wbmcifQ%3D%3D">
							<img loading="lazy" decoding="async" width="768" height="433" src="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3-768x433.png" class="attachment-medium_large size-medium_large wp-image-180" alt="Exchange Online, Outlook - blokovaný typ souboru" srcset="https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3-768x433.png 768w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3-300x169.png 300w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3-1024x577.png 1024w, https://www.sraga.cz/wp-content/uploads/2024/02/exchange-filetype_3.png 1115w" sizes="(max-width: 768px) 100vw, 768px" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">Povolení souboru s příponou .xml</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-b11ec72 elementor-widget elementor-widget-code-block-for-elementor" data-id="b11ec72" data-element_type="widget" data-widget_type="code-block-for-elementor.default">
				<div class="elementor-widget-container">
					<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-powershell'>Get-OwaMailboxPolicy | Set-OwaMailboxPolicy -BlockedFileTypes @{Remove = &quot;.xml&quot;}
Get-OwaMailboxPolicy | Set-OwaMailboxPolicy -AllowedFileTypes @{Add = &quot;.xml&quot;}</code></pre>				</div>
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				<div class="elementor-element elementor-element-bb010d8 elementor-widget elementor-widget-heading" data-id="bb010d8" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Povolení MIME type "text/xml" a "application/xml"</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-b7e045f elementor-widget elementor-widget-code-block-for-elementor" data-id="b7e045f" data-element_type="widget" data-widget_type="code-block-for-elementor.default">
				<div class="elementor-widget-container">
					<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-powershell'>Get-OwaMailboxPolicy | Set-OwaMailboxPolicy -BlockedMimeTypes @{Remove = &quot;text/xml&quot;, &quot;application/xml&quot;}
Get-OwaMailboxPolicy | Set-OwaMailboxPolicy &ndash;AllowedMimeTypes @{Add = &quot;text/xml&quot;, &quot;application/xml&quot;}</code></pre>				</div>
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						<span class="elementor-alert-title">Upozornění</span>
			
						<span class="elementor-alert-description">provedené změny se neprojeví hned. Je potřeba několik minut počkat, případně se uživatel odhlásí a znovu přihlásí.</span>
			
			
		</div>
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					<h2 class="elementor-heading-title elementor-size-default">Videonávod</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Užitečné odkazy</h2>				</div>
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							<li class="elementor-icon-list-item">
											<a href="https://learn.microsoft.com/en-us/exchange/troubleshoot/outlook-on-the-web-issues/cannot-open-attachments#cause" target="_blank" rel="noopener">

												<span class="elementor-icon-list-icon">
							<svg aria-hidden="true" class="e-font-icon-svg e-fas-dot-circle" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path d="M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm80 248c0 44.112-35.888 80-80 80s-80-35.888-80-80 35.888-80 80-80 80 35.888 80 80z"></path></svg>						</span>
										<span class="elementor-icon-list-text">Microsoft 365 users can't open or view attachments in Outlook on the web</span>
											</a>
									</li>
								<li class="elementor-icon-list-item">
											<a href="https://support.microsoft.com/en-us/office/blocked-attachments-in-outlook-434752e1-02d3-4e90-9124-8b81e49a8519?ui=en-us&#038;rs=en-us&#038;ad=usi" target="_blank" rel="noopener">

												<span class="elementor-icon-list-icon">
							<svg aria-hidden="true" class="e-font-icon-svg e-fas-dot-circle" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path d="M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm80 248c0 44.112-35.888 80-80 80s-80-35.888-80-80 35.888-80 80-80 80 35.888 80 80z"></path></svg>						</span>
										<span class="elementor-icon-list-text"> Blocked attachments in Outlook</span>
											</a>
									</li>
								<li class="elementor-icon-list-item">
											<a href="https://support.microsoft.com/en-us/topic/outlook-blocked-access-to-the-following-potentially-unsafe-attachments-c5c4a480-041e-2466-667f-e98d389ff822" target="_blank" rel="noopener">

												<span class="elementor-icon-list-icon">
							<svg aria-hidden="true" class="e-font-icon-svg e-fas-dot-circle" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path d="M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm80 248c0 44.112-35.888 80-80 80s-80-35.888-80-80 35.888-80 80-80 80 35.888 80 80z"></path></svg>						</span>
										<span class="elementor-icon-list-text">Outlook blocked access to the following potentially unsafe attachments</span>
											</a>
									</li>
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