Email Protocols

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Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

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Hi
I got a mail from capgeminioffers.in@capgemini.com was it real or not please tell me
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I have one client that cannot email me.. They receive a bounced back message saying;

550 Verification Failed
No such user here
Sender verification failed

I can however email them. But they cannot reply.

None of their emails from their domain raywhite.com will come through, however I have been guaranteed from my ISP (crazy domains) that there are no blocks on my end. However i do know of another company who are with crazy domains are experiencing the same problem with the Raywhite.com server  

As I run my ow  business, my only option is to change hosting companies in the hope that works.

Would love an easier fix
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We have a web application that uses the client email to send email 'from'. We want to add an SPF record on the client's DNS (text records) to allow this. I need to confirm the syntax before I do so.

v=spf1 a mx a:mail.domain.com mx:domain.com ip4:XX.XX.XXX.XX ~all

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"domain" being their domain name
XX.XX.XXX.XX being the IP of the server that hosts the web application

Please let me know if you think this looks correct or if any changes are needed.. Also what is the difference between mail.domain.com  and  domain.com
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Hi All,

May I know where shall I manually add the below entry if I handle the Public DNS using Windows Server box in my DMZ ?

DKIM: Create a CNAME record for k1._domainkey.MyDomain.com with this value:
dkim.mcsv.net

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SPF: Create a TXT record for MyDomain.com with:
v=spf1 include:servers.mcsv.net ?all

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What is the risk or issue when implementing it during the business hours ?
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Hi,

Had issues with ActiveSYnc timing out on Exchange 2010 SP2 RU4. Updated the server to SP3 RU17 on May 20th.
Only the activesync timeout problem for 3 Users existed prior to this update. These activesync issues remain for the three Users (not the focus of this question) and new issues are seen (focus of this question):

Total of 15 Users out of 250+ affected with this new problem. These Users are not the same with the ActiveSync issue:
1) For SOME Users all shared mailboxes in Outlook no longer populate with emails or auto-update immediately after the updates.
2) For SOME Users, this issue appeared to start a full week later.
3) For ONE User, only one of three shared mailboxes in Outlook are not auto-updating.
4) Selecting the folder in Outlook ,choosing the 'Send/ Receive' tab and selecting 'Download Headers' then 'Update Folder', allows the emails in these shared boxes to populate with new emails (since the last time this process was manually run).
5) Win7 Pro for all but two Users, who are on Win10.

What I have tried (not necessarily in this order):
1) New Outlook profiles
2) New Win7/ 10 User Profiles. Tried this because loading two of these Users' profiles onto a different, unused laptop works fine.
3) Deleting the .OSTs manually and rebuilding
4) Cached Mode/ Online Mode
5) Deleting the autodiscover xml record in the Outlook profile folder. Did this in case that file was corrupted and was not pulling the shared mailbox info properly.
6) Saw a …
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I am trying to setup subscriptions through our reports server generate reports and have them automatically emailed to external addresses.
I am using SQL Server 2012
Reporting Services Configuration Manager
Email settings:
Sender address: jrichards@mydomain.com
current smtp delivery method: use smtp server
smtp server: smtp.mydomain.com


WE do not have a local smtp server setup so if I can use google smtp or some other method to send mails from the reports server that would be great.

Thanks for your assistance:

Regards,
Joshua
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recently my mail relay server experiencing incoming mail delayed from protection.outlook.com, as i see online forums, MS recently have stopped using TLS 1.0 authentication and only supports TLS 1.1 and 1.2, but not all of their servers but 75% of it, but my mail relay server doesn't have any TLS enabled, so is this can be the issue?

all the mails from other mail servers receive without any issue.

My mail relay server is CentOS 6.5 , (no Grey list enebled, no SPAM filter, no TLS enabled)
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Hello

Facing an issue with one company, that I can't receive email from them !!
Wwe have our own mail server as they do , they have Exchange Server as they mentioned,and we have SPAM Filter Appliance but the email never reaches SPAM Filter in order to be checked and sent to Our Mail Server.
Our Domain is hosted  with hosting company and they are pointing MX Record to our public IPs .

What are the steps to troubleshoot the issue ?

Thank You
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Dear All,

I have a question. When my clients send their transactional emails using my provided SMTPS, I process the MTA logs to generate bounces and track emails. I need some guidance here, how would I put my web application in the middle of MTA and the client so if any client sends any transactional email using the provided smtp, it pushes the email to my application first and then my application pushes it to the mta after filtering it.

Thank You
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Like the title says, we are missing Outlook 2013 calendar entries and contacts.

We are not using Exchange, but we are using an ost file. I did an Outlook scanpst, and Outlook repair. Some of the messages were gone, so I deleted the .ost file to allow it to rebuild. Although all the email messages have returned, the Outlook Calendar entries and contacts are gone. How do we get those back? This is just one PC that is affected. Thanks.
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Should DKIM must be implemented before setting up DMARC ?

For DMARC, should I only need to implement the following info ?

    DMARC Record : v=DMARC1; p=none; rua=mailto: itadmin@abc.com;
    Record Type: TXT
    Target/Host/Location: _dmarc.abc.com

Who will be responsible to send the DMARC report for my domain to itadmin@abc.com ? Where the mail flow information be stored ? It is responsible by DNS provider ?
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I am receiving the following error when truing to setup Microsoft Exchange 2013 on a new server. I have followed all of the instructions noted in Microsoft's guide:
https://social.technet.microsoft.com/wiki/contents/articles/14506.how-to-install-exchange-2013-on-windows-server-2012.aspx
However when I run the installer it throws this error when setting up the "Mailbox role: Transport service."


Error:
The following error was generated when "$error.Clear(); 
            if ($RoleProductPlatform -eq "amd64")
            {
                $useAttachMode = $false;
                $fastInstallConfigPath = Join-Path -Path $RoleBinPath -ChildPath "Search\Ceres\Installer";
                $command = Join-Path -Path $fastInstallConfigPath -ChildPath "InstallConfig.ps1";
                $fastDefaultDataFolderPath = Join-Path -Path $RoleBinPath -ChildPath "Search\Ceres\HostController\Data";
                $dataFolderPath = $fastDefaultDataFolderPath;
                
                if ([System.IO.Directory]::Exists($fastDefaultDataFolderPath))
                {
                    $useAttachMode = $true;
                }
                else
                {
                    if ($RoleIsDatacenter -eq $true)
                    {
                        $preferredDataFolderPathRoot = "D:\";
                        if ([System.IO.Directory]::Exists($preferredDataFolderPathRoot))
                        {
                            $dataFolderPath = Join-Path -Path 

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Hi All,

Our environment runs exchange 2010. Recently we have found that we are unable to set up SMTP on devices (scan to email on copiers, email notifications on various things). Details are entered in correctly at the device but the test always fails with a generic error (unable to send email) etc.

Some other devices on the same network seem to be able to send SMTP notifications without issue (e.g. our UPS). If I copy the exact SMTP details in a device that isn't working, to one that is. The email sends, indicating to me that the actual settings are ok?

The only reason I can think of to cause this would be that some devices require something additional that our Exchange Server doesn't have configured?

We have no known issues with our Exchange server. I've had a look at "Receive Connectors" in Exchange, and tried adding in a new receive connector for the IP address of a device that isn't working, but it doesn't seem to solve the issue.

What should I be looking at to ensure that all devices within our network can communicate via SMTP?

I have tried testing SMTP using a few tools, using "bmail" from here: http://retired.beyondlogic.org/solutions/cmdlinemail/cmdlinemail.htm

I can successfully send an email from any made up address to a valid address in our organisation using the below example command:

C:\> bmail -s MyServer -t recipient@acme.com -f me@mydomain.com -b "This is a test" -h -a "This is the subject"

That works.


Using TELNET and …
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I changed the password on a gmail.com account and now it is failing.  It keeps asking me to put in the log in and password and when it tests an email, it fails to connect to server.  I have tried deleting the email and reinstalling it.  It won't reinstall it.  I have tried using the old password.  Nothing is working.
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I am setting up an email account on Outlook 2016 with IMAP server settings.  When I delete a message I want it to go to the delete or trash folder but remain available for future reference.  Is there a difference between trash & deleted folders?  I have UNchecked both boxes in the "deleted items" for internet email settings".  Thanks in advance for your thoughts!
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I have a Server 2012 R2 with Intel Active System Console running.
I want to receive emails on Critical Events.
I need to configure Mail Server Address, User ID, Password and Recipient Email ID.
I use my ISP's SMTP server address for the Mail Server Address.
It doesn't require authentication but I am forced to put in a User ID and Password.
There are no options for configuring ports or encryption.

What User ID and Password do I use? The one I use to log into Intel Active System Console or one for the email server?

How do I test this is working?
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I have Dropcam (now Nest) forward mail to three different email addresses.  Often, one relay entity is very slow (just now, 111 minutes).  This is usually "yourhostingaccount.com."  Why and what should I do about it?
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I want my mail address back fps.noh@gmail.com
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User get the error message attached

The laptop has been formatted but the issue still exists. It happens only to this user
garysemailissue.txt
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Hi Experts,

I lately started getting the attached popping up in my screen constantly, after I fill in all credentials its fine for about 15-20 min and then it pops again..
We already tried recreating the account and it helped for a day or two..
What is the cause & what is the solution?
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I have postfix installed on a fedora linux server.  It works for the most part.  I can receive mail and reply via webmail.   It does not work for mail clients.  It will receive mail okay but you cannot sent outgoing via my mail server.  
Plus gmail will not accept my emails because I do not have encryption set up.    Post fix was installed by another admin and I do not want to lose the functionality I have but I need to get up to speed with encryption and being able to send emails from an email client.  
Help please.
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I have a custom developed (Mail Service Process) that gathers notification information from various customers, and then builds a notification email and then sends that email through a smtp server (mail chimp).

Some times my (MPS) server or process fails and the emails stop being sent out.  I need to know when we stop sending out emails.  Unfortunately, the server is still running, and the Service is still running, it's just not sending the emails.

I'm thinking I could send (on a schedule, like every 5 or 15 minutes) a genetic "status" email to somewhere external that is watching, and will notify me that the status emails are not showing up, rather than me finding out when a customer realizes they are not getting emails.

Sort of like a deadman switch for outgoing email.

Does anyone know of such a service?  I have seen services that do full send/recv email account verification, but that is not the same.
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Hello Expert,
                       In our CRM software application, we track if an email is opened by sending  an image. But for gmail and yahoo, from recent past, we are not able to track the open status and update in our database.

we use below link to check the mail status:
<img  style=\"background-image:url('"+ DomainName + "MailStatus.aspx?type=open&MailKey=" + mailKey + "&DB=" + Session["PMSFolder"] +"');\" src=\"https://domainname.com/market/Images/e-con-logo.png\">"

This code works in some mail servers but in Gmail and Yahoo mail servers.

URL we send:   src=”https://domainname.com/market/ Images/e-con-logo.png "

When we check after opening the image in the inspect element. it contains exact src path in some mail servers but in gmail some additional content is added  in src as shown below below:

src="https://ci6.googleusercontent.com/proxy/hfAE6PnjWpXfUzaHYmYWTco-O4y_nR6-xzbMEa8TBhYjf1r5_YPQorjZUTo2PMnw4-dBZqpcTs4Svoafh3BkgSOszOEl4jsh7BWCouGKeCC4HQx2Z9V67iaIBjBU30_hR3ggGLgiSDMi_gbQzLnePGWf104X6lUKpg1bDRuOBCQUgpXtA7Y04YeqqQtQ69tHhMsXmY7YIopkdkzzqzdg6esy7d0SiB12y7I4-PA8n_f9UMuIXB6S8n9iJwgp-hGvV_rTRU1nuV4JGLQcUqDiVoI=s0-d-e1-ft#https://domainname.com/market/ Images/e-con-logo.png ">

Please help us address this to track email users.

Regards,
Gracesoft
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I have a task to urgently install POP3 service for and existing exim installation on Debian 8.
Which POP3 server is the best? Please link configuration guide if possible.
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Dear All,
site xyz.net.au is not on any blocklist, has good reputation in senderbase.org.  It can send emails to any gmail/ google hosted mail server, BUT the email is stripped of any attachment.  The attachment is always a .pdf, not .pdf.exe.  I need a contact number/ email for 'outside' admins to interact with google, or failing that, a solution that doesn't involve changing the IP address.
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Email Protocols

13K

Solutions

10

Articles & Videos

16K

Contributors

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.