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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.

Related Topics

  1. Exchange
  2. Email Protocols
  3. Outlook
  4. Email Clients
  5. Email Software
  6. Linux
  7. Windows Server 2008
  8. SBS
  9. AntiSpam
  10. Active Directory
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How can I tell if a commercial third-party email service provider is an intermediary between the original sender and me?

I'm familiar with "view message source."

Thanks

922 views
Industry Leaders: We Want Your Opinion!
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Hi Experts,

I have installed a EXCH2013 STD DAG with 3 Servers.
I want to use the premium journaling feature.
I know I need the enterprise CALs for it.
Can I use it with my Standard Exchange …

518 views

Hey Guys,

We currently run PowerMTA 3. This is a product that is used for high volume email. (not spam). We need to upgrade to a later version of the product but due to the cost and due to them …

621 views

We just finished migrating from Exchange 2007 to 2013. All users were migrated and working normally. Public Folders were still on 2007.  We used the instructions found in the URL below to migrate the …

712 views

lamp shared server
hostupon.com

root
mail folder

i see subfolders for all my mail account names
which have sent folders

but none of the files are readable and files are less than 14kb

i…

428 views

Is it possible to send on behalf of one email addresses associated with our name in exchange...
I just tried and get a "impossible to contact the recipient: email phil@xxxx.xxx . You are not …

637 views

Hi All,

I'm in the middle of Exchange email flow troubleshooting and I need your help.

Can anyone here please assist me in modifying the below PowerShell script which only works returning the …

1322 views

Hi

We have VMware infrastructure and we use VSphere Client 5.5.0. We had problem with one of our data store and have to clone our exchange server and the cloning has been completed. The original VM…

228 views

i have a working Exchange system and the owners want to use it for file sharing as well in a very simple way. they just want to be able to send really really large emails to each other and to a …

1348 views

Hey Guys,

We have a request to migrate to an inhouse clustered Exchange setup on vmware.

What are the requirements i need? Right now i have dual ESX hosts (with vmotion), and a SAN.

Thanks.

833 views
Enterprise Mobility and BYOD For Dummies
Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Hey Guys,

We have Exchange in house, we are a small organization. We are looking for some sort of option in case our Exchange server goes down to send/receive email. I know clustering is out there,…

829 views

“Which is the best port for SMTP connectivity?”

There are multiple port options available, but which one should you use?

561 views

Hello guys,

My problem is this;

I have setup and installed a new version of exchange server 2016 on a virtual server 2012 R2. The domain controller is also a virtual server on the same virtual …

1749 views

Hi im facing a problem with regards to external email contact created from exchange they are receiving email from our dynamic distribution group email which are related to circular. Is there way to …

229 views

I have added a spf record on my domain. Verify the record with mxtool.com and it prompts for error "DNS Record not found"

Any idea ? How to fix it ?


The record added in SPF is

v=spf1 mx …

429 views

hi all .

currently i have issue with email . when sending emails from x1 to x2 and set the request read receipt  to ON i got the message that read by x2 and x3 ( other user )

x3 is not on the …

137 views

Hi All
I  have  user hows mailbox   cannot send or receive emails
when I send here a mailbox I get the following error.

"Your message wasn't delivered because the recipient's mailbox is …

241 views

We are setting up a new Linux mailserver and migrating from a hosted solution. This means a messy migration but we can live with that.

I'm setting up CentOS 7 with iRedMail and looking at MX …

283 views

There is no MailChimp 'Content' heading in design mode, along with 'Design' and 'Comments' which do exist.

The 'Content' pane is required to access Content Blocks in the design mode.

This URL …

228 views
Free Tool: Path Explorer
Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

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

Hi All,

If I create two different IP address (A) record for the Linux appliance in my internal DNS server and then make it the same name like below:

External AD-Integrated DNS server:

649 views

Hello,

We are in process to migrate our exchange to exchange 2016.

And need to modify the Default Tiles Menu OWA pages in 2016.

Is there any way to do it.

Regards,

361 views

I have a need to be able to create a Contact in a Users Outlook Address book. Here is some more info, some users have more then one  Email account which means multiple address books. So here is my …

159 views

We currently have an one on premises Exchange 2013 server and are moving to Office 365.  We are not going to maintain a hybrid scenario and are performing a cut-over type of migration. So once we …

748 views

We recently had a phishing attack that only harvested one account. This one account then began to SPAM thousands of emails via our OWA. We caught the account and shut it down, but not before we were …

353 views

Please provide me with the URL address I can use to post and get answers and feedback on different Gmail email questions.

A general support or forum page is what I am looking for.

274 views
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201506-LO-Top-001

Email Servers

23K

Solutions

49

Articles & Videos

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.

Related Topics

  1. Exchange
  2. Email Protocols
  3. Outlook
  4. Email Clients
  5. Email Software
  6. Linux