SMTP is the Simple Mail Transfer Protocol, the most recent standard of which is defined in RFC 5321. It's the Internet standard for sending and receiving email.

learn more… | top users | synonyms

0
votes
2answers
1k views

How to send local mail via postfix to another server

I have postfix set up for use as an STMP server to send mail for my domain, but I receive email for the domain via gmail/google apps. The reason I use my own postfix is because I send out a lot of ...
3
votes
4answers
20k views

Exchange bouncing email sent by Outlook

We are trying to move users off Exchange 2007. Following various guides online, we've changed our Accepted Domain to be "internal relay" and created a "Send connector" to relay unhandled email for our ...
0
votes
2answers
2k views

Exchange Disconnecting on EHLO with remote telnet

When I go to the local terminal on my Exchange box (SBS 2008) I can do this: telnet 127.0.0.1 25 220 Exchange banner here EHLO example.com 250 Server name However when I go from another box, or ...
0
votes
1answer
77 views

Why SMTP service should be started for email receiving?

Windows Server 2003, SP2. Configured both mail services POP3 and SMTP. And found, that when SMTP service is stopped, pop3 service doesnt receiving email messages... outlook express is configured to ...
1
vote
2answers
471 views

OS X Server: SMTP Server problem

I have problem to setup my mail server. My system is a OS X 10.6.2. Server. I configured the mail server so far, but I cannot connect to the smtp server correctly. Correctly means that I can connect ...
1
vote
2answers
2k views

Prevent SMTP Connections From Outside Localhost

I have a web site which needs to send email to confirm orders and alert subscribed users of certain events. I do not need to send email through the server for any other reason, so I would like to ...
2
votes
2answers
4k views

Using ClearOS as a gateway/firewall/mailserver

Just installed ClearOS on a PC to act as our firewall firstly and then to act as an internal mailserver. My question is: Can i create a mailserver that then routes the mail through to our ISP mail ...
3
votes
2answers
1k views

SPF Setup - Sending from VPS and Google Apps

In follow up to my question here, how on earth do I setup a SPF record?!? I understand that I have to add a TXT record to my DNS entries but what to put in that TXT entry is what's confusing me... I ...
2
votes
2answers
6k views

550 Invalid HELO/EHLO must contain a FQDN or IPv6

I've got a Windows Server 2008 box where I host a number of websites (on different domains) that send email as part of their functionality. I've been checking up on the SMTP events and found a number ...
0
votes
1answer
462 views

Novell Groupwise 7 SMTP Setting

Our Groupwise server currently uses an outbound SMTP server for all outgoing mail not within our domain. Is it possible to force Groupwise to use the SMTP server for ALL mail including addresses ...
2
votes
1answer
2k views

Mail command using alternative SMTP port?

I have setup an SMTP server on port 10025. I wanted to test sending emails to it via the command line. Is there a parameter I can give the mail command to use the smtp server on 10025? echo hello | ...
0
votes
1answer
641 views

how to add mail boxes to iis 7 smtp

may be an easy one for the pros but for me quite hard.. Hi I have installed iis7 and enabled SMTP. Where do i start adding email addresses. I know this sounds stupid but I just dont know where to ...
5
votes
2answers
1k views

Exchange Server vs. IMAP

I've been using a hosted exchange server environment (dslExtreme) for years. Originally, I used it w/ Outlook, but now that I have a Mac, I use Entourage. I also use my iPhone to connect to my ES ...
0
votes
1answer
1k views

How to set up my own computer to be an smtp relay only on my private network?

we have mac os x server which isn't connected to the internet, but it's hosting some collaborative tools which is used internaly only (lan). Some of those tools send notifications, but our mail ...
1
vote
6answers
1k views

How to find SMTP server admin contact

For some reason at&t's smtp server, atlsmtp.cingularme.net is dropping messages coming from our SMTP server. I would like to contact their sysadmin to see why that is happening. However, I can't ...
1
vote
2answers
13k views

Telnet to smtp server port 25 --> Connect failed

I want to send an email via telnet. When I typed to the command prompt telnet 'smtp_servername' 25 the following message appears Could not open connection to the host, on port 25: Connect failed ...
2
votes
2answers
305 views

E-mail duplication problem

I have taken out a hosting agreement with a well respected hosting provider for a couple of internet facing servers. We have deployed several applications to these servers which send various e-mails ...
0
votes
1answer
510 views

Windows 2003 SMTP virtual server, why emails are not delivered?

Configured Windows 2003 as my email client, everything works fine with POP3 (i'm able to recieve emails), the problem is with SMTP and i can't figure out how to find where excatly this problem is, ...
0
votes
1answer
1k views

JavaMail application won't send email to external SMTP server

This is actually a question from an exam, but I believe it could help others troubleshooting a similar situation. In a system, an e-mail needs to be sent to a certain mailbox. The following Java ...
2
votes
1answer
192 views

When sending emails through smtp do I need to setup DomainKeys and any kind of other email config?

When sending emails through gmails smtp (smtp.gmail.com) do I need to setup DomainKeys and any other kind of email config?
3
votes
3answers
334 views

Does our IMAP access have to be behind our VPN?

I work for a small company (around 40 people) and our email is available via IMAP - but only when connected to our VPN. For iPhone users (and generally), the VPN connection appears to be an ...
0
votes
1answer
584 views

Exim log and send all mail for a given domain through another server

I administer a handful of shared web hosting servers. Recently, Yahoo has been deprioritizing/greylising all email sent from these servers. I am getting the dereaded 421 4.7.0 [TS02] Messages from ...
1
vote
2answers
480 views

Windows SMTP server suggestions? [closed]

My ancient mail server machine crapped out a few days ago. I cobbled together another machine from spare parts and the bone pile, which included reformatting the existing disk and installing a fresh ...
3
votes
2answers
2k views

Exchange 2003 SP2/2007: Address space ignored in SMTP Connector

MS and Postini (Google) are in a tizzy, and long story short, Microsoft was/has blocked Postini's IP block. I think it's been lifted again, but my workaround isn't working (see below). I have a ...
6
votes
2answers
3k views

Setting up two Exchange servers to receive mail on their old domains while sending and receiving using the same new domain

The scene: A merger of two companies. One running Exchange 2010, the other Exchange 2003, both having Active Directory Schemas at Server 2003, SP 2. Short term goal: Establish a trust between both ...
0
votes
2answers
693 views

Please explain my VPS's Mail Queue Manager

On my VPS in WebHost Manager I have an area called Mail Queue Manager. I frequently have a few messages built up in there that seem to contain viruses and other problems. What are these messages, ...
2
votes
1answer
3k views

sendmail vs smtp server

I currently don't have a SMTP server setup. However, in my PHP code, I send all my SMTP request to sendmail. Are there any down fall to using this procedure? If yes, what are the advantages of ...
2
votes
2answers
560 views

Convert old computer into an SMTP server

I'm new to server hosting and whatnot, but I have a question regarding SMTP servers. I have an old computer lying around and would like to make use of it. Is it possible for me to have this machine ...
4
votes
3answers
5k views

Trouble with IIS SMTP relaying to Gmail

I appreciate that similar questions have been asked about how to setup SMTP relaying with IIS's virtual SMTP server. However I'm still completely stumped on this problem. Here's the setup: IIS 6.0 ...
2
votes
1answer
845 views

How do I get SMTP Port 25 to be PCI Compliant on OS X 10.6 Server?

When running PCI security scans on this server it fails on port 25 with: SSL Server Supports Weak Encryption nCircle ID: 6174 Port: 25 CVSS Score: 5.8 Not Compliant Description The SSL (Secure ...
1
vote
2answers
296 views

Users can't send mail through smtp

I have my own mailserver, it used to be hosted by Hostgator but now I have a VPS. From my home location I can send and receive mails as much as I want. It even works on my phone. My other users also ...
1
vote
0answers
487 views

How to force internal email through an smtp connector in exchange 2007 [closed]

I have reason to force internal messages through an smtp connector. Can this be done?
1
vote
3answers
1k views

Local authentication free SMTP server for GMail

There is an application that cannot use GMail SMTP with authentication. I want to know if there is a possibility to create a local proxy SMTP server that will send mail via GMail? So I can assign ...
2
votes
2answers
2k views

IIS6 cdo.message cannot send emails access denied error

Got some very basic email code on a iis 6 server to send a test email. Relay is enabled on exchange server for this server, the iis user has write permissions to the directories for mailroot and all ...
1
vote
0answers
585 views

Problems when using IIS SMTP Pickup Service [duplicate]

In my website, I send emails from my website to IIS SMTP Server (using the pickup drlivery method). IIS SMTP server is set up to forward the emails to a local mail server, XMail Server, running on the ...
1
vote
2answers
979 views

Running/debugging SMTP Event Sinks under windows 2008

I have an SMTP Event Sink to process incoming SMTP email messages to perform special processing. Under IIS 6/SMTP, this event sink runs as expected. Under IIS 7/SMTP, it does not appear to run, even ...
10
votes
11answers
50k views

IIS/SMTP - emails are stuck in mailroot/Queue

I'm trying to send e-mails via SMTP within the IIS pickup directory. Unfortunately the e-mails are just going into the mailroot/queue folder and stay there. They never actually get sent. Does ...
3
votes
3answers
3k views

Any gotchas for using multiple SMTP servers for a single domain?

We want to run the majority of our mail (inbound and outbound) through a third-party service provider. We also want to keep an SMTP server running onsite that will be used with existing automated ...
0
votes
3answers
155 views

Do outgoing SMTP servers need to have assigned domains?

Do outgoing SMTP servers need to have assigned domains? If a domain name is not assigned to an outgoing SMTP server will it increase the spam score?
1
vote
2answers
2k views

SMTP service on Windows 2008 R2 Core

I have setup a server with Windows 2008 R2 Core Web Edition. The question is, how can I install the IIS7 SMTP service? Or is SMTP missing in the Core editions? Thank you
0
votes
2answers
3k views

PDF Corruption When Sending with Microsoft Products

I have the same PDF corruption problem in two different offices that I am the tech support for. Office 1: Started in the middle of December. PDF received from outside the office and is viewable with ...
1
vote
3answers
297 views

Using an SMTP server that isn't attached to my domain?

I have some clients for whom I manage hosting but I don't actually run the hosting servers. Most of the domains are together on one server/IP address (along with other domains that aren't mine). One ...
1
vote
2answers
122 views

Postfix smtp mail loging

Google fails me... Is there a way without modifying Postfix code to get copies of emails sent via smtpd server? Anything will do - text file, pipe, local socket. I just need Postfix giving me time, ...
0
votes
1answer
1k views

Problem sending mail “Client host rejected: Sorry, no xDSL here”

I'm trying to use SMTP on localhost to send emails thru a simple mailform in asp.net c#. For some reason all emails end up on the badmail folder. The .BAD file says: Final-Recipient: ...
0
votes
3answers
274 views

SMTP server to edit email content on the fly

I am looking for an open-source / free SMTP server that will enable me to automatically change the content of outbound messages via a simple search & replace (or regular expression). It should be ...
3
votes
2answers
23k views

Easiest way to configure local SMTP server to relay through gmail on Windows?

We have gmail for our corporate email provider. I want to be able to send mail through smtp.gmail.com from ASP.NET. I have managed to do this just fine - and it has the benefit of all sent items ...
2
votes
2answers
2k views

Postfix relay with Exchange Server

Is it possible (or even logical) to use Postfix as relay MTA with Microsoft Exchange Server 2007, and if so how?
0
votes
1answer
2k views

Sending Email by SMTP IIS7 Server on Windows Server 2008

I have a website that sends out email The C# code to do this is: var mailClient = new SmtpClient { DeliveryMethod ...
1
vote
2answers
2k views

Exim send failure “421 SMTP incoming data timeout” - Message body lacks '\n' at the end

I'm trying to figure out how this issue is occurring and how to stop it. Somehow messages are getting into our inbound Exim spool without any \n at the end. When our outbound Exim process tries to ...
1
vote
2answers
3k views

How to avoid mails going to SPAM (Configuring SMTP Server on IIS)

How to configure SMTP Server in IIS such that the mails sent from my Server doesn't go to the spam box of gmail, yahoo, or hotmail ?