Spam Archives - Practical 365 Practical Office 365 News, Tips, and Tutorials Mon, 02 Oct 2023 16:06:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 https://practical365.com/wp-content/uploads/2022/06/favicon.png Spam Archives - Practical 365 32 32 Identifying Malicious Emails in Inboxes https://practical365.com/identifying-malicious-emails-in-inboxes/ https://practical365.com/identifying-malicious-emails-in-inboxes/#comments Tue, 10 Oct 2023 10:00:00 +0000 https://practical365.com/?p=59291 In this article, Thijs Lecomte discusses how to identify malicious emails using Microsoft Defender for Office 365.

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]]> https://practical365.com/identifying-malicious-emails-in-inboxes/feed/ 2 Threat Explorer and Investigations: Useful Microsoft Defender for Office 365 Features https://practical365.com/threat-explorer-microsoft-defender/ https://practical365.com/threat-explorer-microsoft-defender/#comments Mon, 21 Feb 2022 07:29:00 +0000 https://practical365.com/?p=55276 Microsoft Defender for Office 365 (plan 2) contains the Threat Explorer feature. It's a useful way to investigate problematic messages which arrive in a tenant. The automated investigations feature can highlight messages containing malware by assembling evidence about warning signs in the message or its contents, and administrators can then action the recommendations up to and including the removal of messages already delivered to user mailboxes. Automating investigations is a good thing, if you afford Defender for Office 365 Plan 2.

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]]> https://practical365.com/threat-explorer-microsoft-defender/feed/ 15 Use SPF and DKIM to Keep Your Email out of Recipients’ Spam Folders https://practical365.com/how-to-keep-your-emails-out-of-the-recipients-spam-folder/ https://practical365.com/how-to-keep-your-emails-out-of-the-recipients-spam-folder/#comments Wed, 19 Dec 2018 16:17:08 +0000 https://www.practical365.com/?p=41984 In this post, Microsoft MVP Alan Byrne explains how to configure the two most effective technologies that will ensure your outgoing email is successfully delivered. These technologies are known as Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM), and they protect your outgoing emails from being marked as spam while also flagging and blocking any incoming messages from unauthorized servers spoofing your domain.

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]]> https://practical365.com/how-to-keep-your-emails-out-of-the-recipients-spam-folder/feed/ 6 Better Spam Filtering with Exchange Online Mail Flow Rules https://practical365.com/better-spam-filtering-mail-flow-rules/ https://practical365.com/better-spam-filtering-mail-flow-rules/#comments Thu, 14 Jun 2018 02:20:00 +0000 https://www.practical365.com/?p=40626 How to use Exchange Online mail flow rules to improve the effectiveness of your EOP spam filtering and protect Office 365 users from phishing attacks.

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]]> https://practical365.com/better-spam-filtering-mail-flow-rules/feed/ 8 Do You Really Need an SPF Record? https://practical365.com/really-need-spf-record/ https://practical365.com/really-need-spf-record/#comments Thu, 07 Sep 2017 11:32:57 +0000 https://www.practical365.com/?p=40022 Are Sender Policy Framework (SPF) records in DNS necessary for domains these days?

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]]> https://practical365.com/really-need-spf-record/feed/ 20 How Secure is Sending Emails to Microsoft Teams Channels? https://practical365.com/secure-sending-emails-microsoft-teams-channels/ https://practical365.com/secure-sending-emails-microsoft-teams-channels/#comments Wed, 15 Mar 2017 21:26:16 +0000 https://www.practical365.com/?p=37674 Are there any security or compliance concerns for Office 365 customers who allow emails to be sent to Microsoft Teams channels?

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]]> https://practical365.com/secure-sending-emails-microsoft-teams-channels/feed/ 7 Emails from Website Not Received in Exchange or Exchange Online https://practical365.com/emails-from-website-not-received-in-exchange-or-exchange-online/ https://practical365.com/emails-from-website-not-received-in-exchange-or-exchange-online/#comments Tue, 22 Mar 2016 10:00:00 +0000 https://www.practical365.com/?p=14340 Emails sent using web forms on a website may not be received in the mailbox of the recipient due to a configuration or filtering issue.

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]]> https://practical365.com/emails-from-website-not-received-in-exchange-or-exchange-online/feed/ 5 Podcast Episode 13: Exchange Online Protection and Advanced Threat Protection with Brian Reid https://practical365.com/podcast-episode-13/ https://practical365.com/podcast-episode-13/#comments Thu, 28 Jan 2016 00:00:00 +0000 https://www.practical365.com/?p=13236 In this episode of the Exchange Server Pro Podcast Brian Reid and I discuss Exchange Online Protection and new ATP features.

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]]> https://practical365.com/podcast-episode-13/feed/ 4 SMTP 554 5.1.0 Sender Denied Caused by Mailbox Junk Email Configuration https://practical365.com/smtp-554-5-1-0-sender-denied-caused-mailbox-junk-email-configuration/ https://practical365.com/smtp-554-5-1-0-sender-denied-caused-mailbox-junk-email-configuration/#comments Mon, 29 Sep 2014 10:30:45 +0000 https://www.practical365.com/?p=7769 A blocked sender in a Exchange Server mailbox's junk email configuration causes SMTP error 554 5.1.0 Sender Denied.

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]]> https://practical365.com/smtp-554-5-1-0-sender-denied-caused-mailbox-junk-email-configuration/feed/ 19 How (and Why) You Should Block LinkedIn Access to your Exchange Server Organization https://practical365.com/blocking-linkedin-access-to-your-exchange-server-organization/ https://practical365.com/blocking-linkedin-access-to-your-exchange-server-organization/#comments Mon, 03 Jun 2013 14:03:44 +0000 https://www.practical365.com/?p=6342 How to configure an Exchange organization to prevent LinkedIn from scraping the address list for email addresses.

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