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Questions tagged [smtp]

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.

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2answers
13k views

Exchange 2007 can not send email to the Internet

We are currently in the beginning stages of migrating from Exchange 2003 to Exchange 2007. We have got to the point where internal mail between the two systems is working perfectly with all of our ...
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6answers
817 views

Monitoring incoming email server

What do people use to monitor that their email server is accepting external email? Most monitoring solutions send notices by email which is useless when incoming email breaks, so some other method of ...
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2answers
486 views

SMTP Outbound-Only: More or less reputable?

I'm reconfiguring some mail architecture and wondering about this... For the purposes of avoiding blacklists and maintaining a good MX reputation, is it better to have: One public IP / SMTP server ...
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6answers
3k views

Push email to a apache/php server

We've built a web service that needs to check constantly for email messages. Basically, an user sends us an email, and the server should make actions based on that email. We could use a crontab PHP ...
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4answers
28k views

Messages stuck in SMTP queue - Exchange 2003

I need your help people ;-) I have a problem with messages coming into our Exchange Server and ones going out through it. Basically, the messages are stuck in the SMTP queue. A message will come ...
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5answers
534 views

DNSBL - Email Servers Spam

I'm currently doing research on a better way for emailing customers our news letter and not using an ESP such as vertical response since most users there use purchase list and ruin the shared IPs for ...
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2answers
5k views

Can't connect to smtp (Exim)

If I type: telnet localhost 25 into SSH, it says: Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. However, when I type: ...
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3answers
402 views

How to get Windows Mail (Vista) to send mail?

It's throwing a "Socket Error: 10060, Error Number: 0x800CCC0E" error on send attempts. So far my googling and binging reveals that a lot of other people seem to have the problem, but none of the ...
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2answers
2k views

Block mails with local from-addresses from unauthenticated senders using courier-esmtpd

We run a small courier mail server (courier-esmtpd). It is configured to accept mail from authenticated clients without recipient restrictions and mail from everywhere to local addresses: *(at)...
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6answers
2k views

Monitor Outgoing / Incoming email

Do you know any freeware software that I can install on our computers in order to silent log (to a folder, or forward to another email address) all received / sent email from that computer? The idea ...
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2answers
741 views

SMTP Error 5.7.1 when sending external mail to sharepoint

I have SharePoint setup to receive mail from exchange 2003 and all works great internally. However when I send a mail from a external source it fails with a 5.7.1 error. I have setup a SMTP connector ...
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5answers
39k views

How do I configure reverse DNS for a SMTP server [duplicate]

We use iis 6 to send out emails for our website but some email addresses bouce backs. It only appears to be 2 addresses. There is at least 100 different email addresses sent to at the same time as ...
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3answers
541 views

Exchange 2003: Outbound messages delivered locally

I'm trying to setup Exchnage 2003 in our test domain to send outbound messages. I would send an email to a gmail address, for example, but in the Message Tracking Center's message history for this ...
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5answers
25k views

When exim4 sends HELO/EHLO, how do I configure which host name it sends?

Mails from my system are being rejected when the receiving server does HELO checking. I believe my system is sending the wrong domain name. I'm running exim4. Googling for anything about exim4 and ...
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1answer
794 views

SMTP Software with Active Directory Integration?

I work for a web hosting company and we are looking for some SMTP software with Active Directory integration. Really it just comes down to something our customers can use easily with the SMTP service ...
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2answers
1k views

Setting up a test SMTP Server

I'm really a total newbie to this, so excuse the basicness (?) of the question. I have a default installation of Windows Server 2003, and I want to test an e-mailing application. What's the process ...
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4answers
665 views

Why is my email coming from a different domain or IP?

I have the following configured: mail.firstdomain.com - 1.1.1.1 - This domain sends out a lot of email (our newsletter to clients), and thus I keep the two separated. mail.seconddomain.com - 2.2.2.2 -...
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5answers
181k views

Reverse DNS - how to correctly configure for SMTP delivery

I started a new service and we need to send emails to our customers (new account confirms, etc). My server is known as prod01.bidrodeo.com and resolves to 97.107.134.38 . For reverse DNS, 97.107....
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1answer
3k views

How do I configure MailEnable on Win 2k3 to allow Google to relay SMTP through it?

We use "Google Apps for Your Domain" for email, but wish to use our old email server for sending mail. The reason being that Google Apps SMTP is blacklisted by several of our partners as being spam(!!...
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1answer
243 views

Setup email address forwarding on Windows 2003

NB: This server has SMTP installed, Exchange is not available to be installed on this box. I'd like to set up a server to accept email for one domain. e.g. emails sent to 12345@acceptdomain.com and ...
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3answers
16k views

How do I set up SMTP on Windows Server 2003 to forward all emails to a given address?

I'm setting up an internal SMTP server to handle software tests which involve the sending of emails. I want to configure the server so that any emails sent to myinternaldoamin.com get relayed (is ...
2
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6answers
439 views

How to centralize my mail?

I get a bunch of mail on about 20 different servers that I'd like to get to one. The boxes are running Linux and right now my solution is to create a TCP relay. I want anytime traffic coming in on ...
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1answer
7k views

Windows Server 2008 SMTP Server is not writing to log file

I use Windows Server 2008 as my development operating system. I have been able to test that the SMTP Server on the machine can successfully send emails (I receive them in my inbox) but the log file ...
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3answers
338 views

Exchange Issues because W3SVC keeps crashing

We have a front end MS Exchange 2003 Server and recently people started complaining that emails weren't being delivered. Upon looking closer at the logs we found this error message: > Event ...
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3answers
8k views

How to log rejected messages in Postfix

Just gone live with a new Postfix mail server, sat in front of an Exchange box for inbound mail only. It's set up to reject email for unknown recipients, which works fine, but I want to get a log of ...
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6answers
690 views

receiving mail during Exchange maintenance?

I was part of a small company, and sometimes we had to bring down our Exchange server to perform maintenance. The majority of mail during the downtime would get redelivered in a timely manner, but ...
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4answers
570 views

Can this SMTP Error be the Developer's Fault?

I have an error message getting returned to me from a website which would appear to be something wrong with the Server side. However, this server works for all other sites on the box. Is there a ...
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2answers
159 views

how to enable bounceback on internet facing linux email relay w/ Exchange 2000 backend

I have to use a Win2k/Exchange 2k setup for our companies mail. There is no way to change or upgrade that. Due to various hacking & spam scenarios that played out, we implemented a linux based ...
4
votes
1answer
13k views

Yahoo Domain Keys setup, getting dkim=permerror (no key)

I'm working on getting DKIM installed on my outgoing mail server, to help my email deliverability to my Yahoo clients (all legit emails, etc, no spamming). I've got DKIM-Signature: and DomainKey-...
10
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6answers
61k views

Temporary failure in name resolution : Host name lookup failure

I've got a script in PHP that's been running fine for months. It recently stopped working. This script connects to gmail to send out an email to my customers. Recently, I started getting this error ...
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5answers
7k views

My ISP is blocking port 25. Is port 587 a good replacement?

Many local ISPs started blocking port 25 recently. My clients can no longer access their email accounts on their email server from external clients like Outlook, etc. I am a complete rookie in this ...
2
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1answer
476 views

Pipe incoming email to a script on Windows IIS SMTP?

I have a web application running on Windows IIS. This app has a database where each item has a unique key (1, 2, 3...), and a list of email addresses (among other things). I would like users to send ...
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4answers
664 views

Steps to take to improve email deliverability [duplicate]

Successfully delivering email to my clients is a pretty high priority at my company. We are of course fully opt-in, paid clients, no possibility of spam, the whole thing. The information we email is ...
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6answers
2k views

How to switch between SMTP servers at different locations on a laptop

I have two ISPs at two separate locations, both with separate SMTP servers. Neither SMTP server allows relaying from the other ISP, so when taking my laptop between each location, I have to swap ...
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3answers
3k views

Exchange 2003 SMTP Error - 'Is Restricted'

We're getting the following Error when emailing a client. There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mail....
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2answers
453 views

Surgemail DNS lookup failure

Just curious if anyone has any experience with Surgemail. I've set it up a couple times and never had an issue but my latest install keeps leaving outgoing messages in the queue with the error "DNS ...
2
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3answers
866 views

SMTP throttling

I need to be able to restrict the amount of bandwidth used by SMTP port 25. Basically, we have a routine in our server software that will send out bulk faxes, not much data per fax but a lot of ...
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1answer
2k views

Configuring mutt to send e-mail over an SSH tunnel

I want to be able to send email from mutt through an SSH tunnel I can SSH into the SMTP server, but I don't know how to tell mutt how to use the tunnel to send e-mail. Can someone help me out, ...
1
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3answers
3k views

Binding Port 25 (SMTP) to all Servers in an SAP System (for inbound e-mail)

I have set up inbound e-mail in my SAP system and it works fine, however it will not allow me to bind port 25 to more than 1 application server at the same time. This means that there is 1 point of ...
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8answers
6k views

How do I add outbound only mail service for local tools to a 'minimal' debian system?

I have several servers running applications on debian. Each has the packages it requires for the application, and no more. Currently, none have mail sending capability. However, I would like the ...
9
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6answers
23k views

fake “from” field in an email

How can I manipulate the "from" field in an email and make the "to" user see something different then the actual. Example: really from From: TStamper@yahoo.com but they see From: Tremayne "...
1
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1answer
430 views

ICS attachments disappear after migrating to exchange 2007

We currently have a small c# script that pulls a calendar appointment from Siebel OnDemand and mails it out to our users using smtp. This all worked before we migrated some users to Exchange 2007 this ...
1
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1answer
2k views

How do I configure SMTP when using Windows Server 2003 as a mail server?

I added the "Mail Server" role to my Windows Server 2003 server, which gave me POP3 and SMTP (I really only need SMTP). I need a server on my LAN that clients can use to email out without SSL or a ...
2
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1answer
5k views

Mail domain authentication problems (error '553 sorry, that domain…')

What are the main causes of the following error and what sort of things would typically be checked to resolve it? 553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1) In this ...
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2answers
5k views

How do I fix an “invalid” SMTP server issue?

Note: Domains and IPs obfuscated for security. We have an internal web application that sends e-mail reports out to various vendors. Our primary exchange server (domain name co.XXX.YY.ZZ) does not ...
3
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3answers
2k views

How do you configure sendmail to reject Email with a Date header too far from real time?

A friend of mine using (I believe) qmail has it configured to reject, as SPAM, any incoming Email with a Date: header that is too far from real time. I can't figure out how to do this with sendmail. ...
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7answers
3k views

Does SMTP greylisting a) stop much spam and b) stop much legitimate mail?

I've just set up an SMTP server on a relatively little used domain using Postfix and enabled greylisting with SQLGrey. So far it seems to be working OK, and while there's the slight irritation of ...
2
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1answer
3k views

IIS & SMTP: Long-delayed deliveries possible

Let me start by 'fessing up: I'm a programmer, not a system admin. (Although I used to be, over a decade ago. Let's be honest: That doesn't count anymore!) We had a situation with a client last night ...
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6answers
2k views

Recommended personal mail server setup [closed]

I've been using GNU/Linux for servers, mostly Debian. I am thinking of keeping my personal email on a centralized server. I have some GMail accounts, and a few from different domains from several web ...
10
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5answers
3k views

Recommendations for SMTP services for massive mailing [closed]

What is the recommendations for SMTP services for massive mailing? Let me clarify, most of the free SMTP services (Gmail, Yahoo, Hotmail, etc...) has limits about the amount of messages you can send ...