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Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

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Microsoft Jet database engine errors can crop up out of nowhere to disrupt the working of the Exchange server. Decoding why a particular error occurs goes a long way in determining the right solution for it.
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Among the most obnoxious of Exchange errors is error 1216 – Attached Database Mismatch error of the Jet Database Engine. When faced with this error, users may have to suffer from mailbox inaccessibility and in worst situations, permanent data loss.
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Last month Marc Laliberte, WatchGuard’s Senior Threat Analyst, contributed reviewed the three major email authentication anti-phishing technology standards: SPF, DKIM, and DMARC. Learn more in part 2 of the series originally posted in Cyber Defense Magazine.
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Steps to fix error: “Couldn’t mount the database that you specified. Specified database: HU-DB; Error code: An Active Manager operation fail”
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Phishing emails are a popular malware delivery vehicle for attack. While there are many ways for an attacker to increase the chances of success for their phishing emails, one of the most effective methods involves spoofing the message to appear to come from a trusted source. Ready to learn more?
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Stellar Exchange Toolkit: this 5 in 1 toolkit comes loaded with mega-software tool. Here’s an introduction to tools’ usage and advantages:
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Steps to fix “Unable to mount database. (hr=0x80004005, ec=1108)”.
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Here in this article, you will get a step by step guidance on how to restore an Exchange database to a recovery database. Get a brief on Recovery Database and how it can be used to restore Exchange database in this section!
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Expert Comment

by:Michael foran
Comment Utility
D,not worry if your EDB file got corrupted due to some reason I would suggest you must download Exchange Server Recovery from my site which successfully recover damage EDB file from exchange server and convert them into PST file and other new readable formats like MSG, EML, vCard, vCal, MBOX and EMLX and vCard with accurate data.  It shows its user preview of recovered mailboxes before conversion. It well works on all Exchange server versions 5.0, 5.5, 2000, 2003, 2007, 2010, 2013 and 2016.

More details visit:  free Exchange EDB Recovery tool
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The main intent of this article is to make you aware of ‘Exchange fail to mount’ error, its effects, causes, and solution.
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Want to know how to use Exchange Server Eseutil command? Go through this article as it gives you the know-how.
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[Webinar] Database Backup and Recovery
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[Webinar] Database Backup and Recovery

Does your company store data on premises, off site, in the cloud, or a combination of these? If you answered “yes”, you need a data backup recovery plan that fits each and every platform. Watch now as as Percona teaches us how to build agile data backup recovery plan.

The core idea of this article is to make you acquainted with the best way in which you can export Exchange mailbox to PST format.
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Author Comment

by:Bharat Bhushan
Comment Utility
It is a good option for mass mailbox backups.
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Expert Comment

by:Brian B
Comment Utility
For mass mailbox backups in Exchange, you should be using a proper backup and recovery system. See my post, PSTs are not reliable for that purpose.
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Are you an Exchange administrator employed with an organization? And, have you encountered a corrupt Exchange database due to which you are not able to open its EDB file. This article will explain all the steps to repair corrupt Exchange database.
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Expert Comment

by:Maryta yllors
Comment Utility
This Exchange Server Recovery is really an amazing tool, especially its deep scan mode. My EDB database files were severely corrupt. I couldn’t find a tool that can repair them. Thanks to your Exchange Server Recovery tool, I have all my important emails and attachments.Company offer Free Trial version of Exchange Server Recovery tool, it is full featured rather than to save mailbox.
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Michelle Phillips
Sometimes clients can lose connectivity with the Lotus Notes Domino Server, but there's not always an obvious answer as to why it happens. Read this article to follow one of the first experiences I had with Lotus Notes on a client's machine, my now good bipolar friendly software.
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This article outlines some of the reasons why an email message gets flagged as spam on a recipient's end.
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Expert Comment

by:Andrew Leniart
Comment Utility
Blocking spam has always interested me and there are some excellent revelations in this post.  Thanks for writing it!
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As cyber crime continues to grow in both numbers and sophistication, a troubling trend of optimization has emerged over the last year.
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Silver and Gold Coins
As tax season makes its return, so does the increase in cyber crime and tax refund phishing that comes with it
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High Rise Building during Night Time Photograph
The new Gmail Phishing Scam going around is surprising even the savviest of users with its sophisticated techniques.
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It’s been over a month into 2017, and there is already a sophisticated Gmail phishing email making it rounds. New techniques and tactics, have given hackers a way to authentically impersonate your contacts.

How it Works


fake gmail login screen- phishedThe attack works by targeting a victim’s contact list and sending out authentic looking phishing emails. When this forged email is opened and the attachment clicked, a page appearing to be the Google log in portal opens.

Once the victim submits their credentials into the site, the hackers start crawling the victim’s inbox. These crawlers look at previous subject lines and attachments for contextual relevance to copy.

A screenshot is taken of a previous attachment and a new message is composed. This screenshot becomes the entry way into the phishing Gmail login page. The subject line is then pulled from a previous email that would be relevant to the attachment.

The new version of the email is sent to all the victims contacts, and the attack starts again. The use of previous subject lines and attachment, help to make the hacker’s email look very genuine. This technique has tricked many users into opening the infected attachment.

One of these emails is described by a commenter on Hacker News,

“[The hackers] went into one student’s account, pulled an attachment with an athletic team practice schedule, generated the screenshot, and then paired that with a
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Phishing attempts can come in all forms, shapes and sizes. No matter how familiar you think you are with them, always remember to take extra precaution when opening an email with attachments or links.
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Free Tool: ZipGrep
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Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

This process describes the steps required to Import and Export data from and to .pst files using Exchange 2010. We can use these steps to export data from a user to a .pst file, import data back to the same or a different user, or even import data to one user from many different mailboxes.
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Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
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Local Continuous Replication is a cost effective and quick way of backing up Exchange server data. The following article describes the steps required to configure Local Continuous Replication. Also, the article tells you how to restore from a backup created using LCR.
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Resolve DNS query failed errors for Exchange
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Easy CSR creation in Exchange 2007,2010 and 2013
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Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
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Email Servers

24K

Solutions

21K

Contributors

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

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