Email Alerts
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How secure is an email with a .pdf attachment?
Sending sensitive information in an email or as an attachment is unsafe, and depending on your organization's security policies, could land you in a lot of trouble. Michael Cobb explains why. Ask the Expert
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How to confirm the receipt of an email with security protocols
Many websites try to ensure secure registrations by sending email confirmations. But how is it possible to confirm receipt of that email by the correct recipient? Identity and access management expert Randall Gamby weighs in. Ask the Expert
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Can an IP spoofing tool be used to spam SPF servers?
Michael Cobb explains what the Sender Policy Framework can and cannot protect against, including IP spoofing attacks. Ask the Expert
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How to configure firewall ports for webmail system implementation
Network security expert Mike Chapple explains why he always recommends placing any server accessible from the Internet into the DMZ. Ask the Expert
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What does 'invoked by uid 78' mean?
Are you seeing a 'uid 78' in your emails? In this expert response, Michael Cobb explains what the message means. Ask the Expert
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Are message stubs a secure part of email retention policies?
Because deleting older emails is not an option for many companies, email "stubs" have been an alternative for organizations looking to archive their messages. Michael Cobb reviews email stubbing and its possible security limitations. Ask the Expert
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What are the security risks of opening port 110 and port 25?
If an external manufacturer wants to remotely access its leased copiers, is it risky to open both port 110 or port 25? Mike Chapple reveals a few security repercussions. Ask the Expert
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Is the iPhone amenable to any method of email encryption?
When it comes to sending and receiving email, the iPhone offers some security benefits. Michael Cobb reviews the mobile devices' current email features and what messaging security mechanisms are on the way. Ask the Expert
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Are Internet cafe users' email credentials at risk?
Most browsers store all Web pages, including a user's message and other information, in a cache from which it is retrievable with relative ease. Expert Michael Cobb explains how to keep the personal data from getting into the wrong hands. Ask the Expert
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Should iPhone email be sent without SSL encryption?
SSL encrypts all of the communication between your iPhone and your mail server. Network security expert Mike Chapple explains how important that feature really is. Ask the Expert
Security Management Strategies for the CIO