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

1
vote
3answers
794 views

Paid SMTP service to decrease probablity being detected as spam?

Is it worth using paid SMTP service to decrease probability being detected as spam? What paid smtp services (except smtp.com) you know? PS: Of course, I'm not going to send spam. PPS: Probably this ...
0
votes
3answers
301 views

Emails Generated From Our Linux Server are Blocked By Our Exchange Server (That Has Barracuda)

We have our company website hosted on a Linux machine. It is sending mail via postfix. The emails are working and being sent to all email clients like Gmail. However, we are not receiving the ...
0
votes
1answer
869 views

DKIMPROXY signing wrong domain

Just.... wont sign a thing... The dkimproxy_out.conf: # specify what address/port DKIMproxy should listen on listen 127.0.0.1:10028 # specify what address/port DKIMproxy forwards mail to relay ...
1
vote
3answers
2k views

Postfix: Relay access denied

When I telnet to my server thats running postfix and try to send an email: MAIL FROM:<someuser@mydomain.com> #=> 250 2.1.0 Ok RCPT TO:<me@gmail.com> #=> 554 5.7.1 ...
0
votes
1answer
105 views

Connecting to my SMTP server

I have a few questions, I just installed SMTP on my Ubuntu server, and I want to know how to connect to it from a different machine... I'm not really clear. I tried: telnet my.servers.ip.address 25 ...
0
votes
1answer
794 views

Sendmail in Nexenta core 3.0.1

I'm trying to setup sendmail in Nexenta core 3.0.1 (Solaris based OS). All I want is to be able to send emails from that host - like notifications about failures, cron jobs output etc. Initially ...
0
votes
2answers
1k views

hMailServer SMTP error

I have hMailServer installed. I can send emails and everything is ok. I have only one problem. When i try to send an email to gmail.com i recive an "undelivered" email and this link: ...
0
votes
1answer
2k views

Cannot install SMTP Service - Insert disk labeled “Service Pack 2 CD-ROM”

We are running Windows Server 2003 R2 x64. I am trying to install the smtp service. I tried the solution posted here, but When I pulled the files over, only the first missing dll was found. Others, ...
0
votes
3answers
759 views

Forcing all Exchange-to-Exchange (2010) e-mail to go via an outside SMTP gateway

We want to force all our e-mail to go via an SMTP server for virus scanning, spam scanning and some tags that we use internally. Is this possible? We configured Exchange's smarthost property and that ...
2
votes
2answers
12k views

How to unblacklist an IP at Google?

I own a small business with two servers for webhosting. When setting up the primary (CentOS 5.5 + WHM, secondary is WHM DNS Only) server I kinda messed up the firewall, so the hackers could send stuff ...
1
vote
3answers
180 views

SMTP Deferred because of Reverse Lookup Errors

When sending emails I get about 5 out of 3000 emails that are status deferred because the PTR look failed according to the SMTP response of the receiving server. My PTR records are in order and match ...
2
votes
2answers
140 views

postfix remote mx 0.0.0.0 looping

Does anyone know how to make postfix avoid getting into an endless loop of errors when a remote mx server resolves to 0.0.0.0 ? The problem sounds exactly like that described here: mail loops back to ...
1
vote
1answer
623 views

exim4 issue with MX records

I have a Debian machine running Exim4. However, when checking the Exim log, I noticed this issue when mailing my own domain: 2010-12-14 09:20:01 1PSQ77-0005mG-9w ** root@domain.com: all relevant MX ...
0
votes
1answer
2k views

How to hide the client IP sender and show only the SMTP server IP?

We got a backend server in a specific ISP with a reverse proxy frontend in a different ISP. In order to send mail we use the backend server which connects to a frontend sendmail SMTP server. The ...
0
votes
1answer
175 views

is there any program that can send emails from localhost

i just have a laptop with an internet connection, but i keep changing the internet provider. i want to be able to send mails from my laptop to real addresses. i dont want to use smtp. can i configure ...
0
votes
2answers
236 views

No sign of smtp login atampt with Outlook, Thunderbird

My mail server seems to be working when dealing mails in squirrelmail set up on my server. It also works, when i set up a gmail account for using my server as an smtp server for outgoing mails with ...
0
votes
3answers
9k views

Sending mail from Postfix via Gmail: unable to get local issuer certificate, certificate not trusted, No worthy mechs found

System specs CentOS 5.5 Postfix 2.3.3 Scenario I've been following Configure Postfix to send/relay emails Gmail (smtp.gmail.com) via port 587 to try and get the connection between Postfix and ...
3
votes
1answer
2k views

Help me understand Exchange and mail routing

The organization responsible for our mail infrastructure has recently embarked upon a migration to Microsoft Exchange. The group I work with has encountered some problems with the Exchange ...
1
vote
1answer
954 views

PHP's SMTP configuration on ubuntu?

http://ca3.php.net/manual/en/mail.configuration.php#ini.smtp Looking at the manual, it specifies that the php.ini option for selecting an SMTP server is a windows-only thing. What do I do to ...
0
votes
2answers
133 views

Qmail and setting up a mail forwarder

We have a set of servers that are isolated from our main network, they are an island from our corporate network. At the moment we have to get relay rules added each time we want to send mails from one ...
1
vote
3answers
416 views

Anti-spam on par with Gmail's?

Currently, I rely on Gmail to weed out SPAM because the anti-spam software on my hoster's mail server is so crappy, and besides, it doesn't provide a good web UI so users can tag false negatives and ...
0
votes
1answer
319 views

SMTP Server recommendations

I have been running a webapp on webfaction shared plan and using webfaction smtp server fine. But I am migrating to linode vps and when I try to send emails using webfaction configuration (my ...
1
vote
1answer
297 views

Send subdomain mail to script/process with postfix

I am trying to do some special mail processing beyond what my mail client's rules/filters can handle (interact with a webservice API). Since I know Python, I am looking at using Lamson to process the ...
0
votes
1answer
2k views

How can we support all domains in postfix smtp server?

I have installed and configured postfix on our server. Postfix config file has relay_domain parameter which contains the list of domain names which postfix will support. Is there a way by which we ...
0
votes
1answer
69 views

How can we support all domains in postfix smtp server? [duplicate]

Possible Duplicate: How can we support all domains in postfix smtp server? I have installed and configured postfix on our server. Postfix config file has relay_domain parameter which ...
1
vote
3answers
1k views

Setup Postfix as a null client?

I'm having a bit of trouble setting up postfix as a null client and have some questions. I'll be aiming to use SMTP as this is what most web applications use as a way to connect to the email server. ...
0
votes
1answer
363 views

Mercury SMTP client E generates an error. How can I resolve this?

Error: The IP you are using is not authorized" generated by mercury/32 mail server When I send emails to Gmail it generate this error but when I send mail to my ISP provided email, it is sent ...
1
vote
1answer
880 views

SMTP 25 closed even I allow everything in firewall, debian server running sendmail

I am running sendmail + dovecot in my debian server. I have enabled the firewall rules to allow everything iptables -P INPUT ACCEPT iptables -P OUTPUT ACCEPT iptables -P FORWARD ACCEPT ...
0
votes
2answers
847 views

Possible to set up email server using Comcast Business?

I'm in no way an expert on this, and realize I might just get told that I'm inexperienced and should not even bother, but I want to know if it's possible to set up an email server on one of our ...
25
votes
9answers
19k views

How to setup a fake SMTP server to catch all mails?

I'm looking for an smtp service that essentially obeys the RFC, except rather than sending mail it simply logs to a file [date] sent mail to <address> Or whatever. I can bash this together ...
1
vote
1answer
424 views

PTR Record Troubles

I am having a hell of a time getting our PTR record right. Our current PTR zone looks like this: $ttl 38400 @ IN SOA ns1.domain.com. admin.domain.com. ( 1268669139 10800 ...
0
votes
1answer
10k views

Allow certain IP(s) to send almost any e-mail through Exchange 2010

We recently migrated form Exchange 2000 (yes I know...) to Exchange 2010 and went through the horror of configuring it. First of all we don't use ForeFront, sadly(?) we can't. Before I ask my ...
0
votes
1answer
166 views

Configuring sendmail to only use starttls in client mode

Is it possible to configure sendmail so that it will only connect to a remote smtp server when STARTTLS is offered there? I so - how do I do it?
-1
votes
1answer
464 views

Setup Postfix Mail Server in Ubuntu 10.xx for a VirtualHost

I want to work with Postfix in Ubuntu 10.xx (.04 or .10) so that one of my virtualhost is the domain name or "mail name" as the configuration calls it for Postfix. How do I do this? ANd how do I ...
1
vote
3answers
2k views

Allowing Sharepoint to relay email through Exchange

I have written a Sharepoint 2007 web part that sends a field from a form to a specified email address. I have got the form working as I require, but at present it can only send to internal email ...
0
votes
2answers
492 views

Development Environment SMTP Server - Rewrite email recipient address

I am looking for a way to setup an SMTP server in our development environment that will run on the local dev server and rewrite the recipient email address to our debug address, without effecting the ...
2
votes
2answers
414 views

Smtp relay service recommendation to increase deliverability [closed]

I need a recommendation for a email relay service to use on multiple domains with C#. I don't want to worry about blacklisting and am looking for increase deliverability on confirmation emails etc. ...
0
votes
2answers
854 views

SMTP not sending email in one server, but sends in another server

I have a section of code that sends email from SMTP server. The code is carried out webservice & smtp server value is picked up from web.config, while the code hosted on server1 works ...
2
votes
1answer
7k views

How to make Request Tracker use an external SMTP mail server?

I am using Ubuntu 10.04 and by following this tutorial I have made RT run well in everything except for sending outbound emails. The difference is, I need to make RT use an external, existing mail ...
1
vote
2answers
2k views

New server cannot send mail

I'm retiring our 10 year old web server (no more Pentium III - yay!). A few of the pages on the web site it hosted have forms that cause e-mails to be sent to certain people. These e-mails are sent ...
1
vote
3answers
285 views

Do MTAs always queue mails when they can't connect to dest MX server?

At our (small) office we're deciding whether to have our MX record point to our local Exchange server. I was a bit worried about downtime, so thought that I ought to set up a backup MX server. Then I ...
0
votes
2answers
98 views

E-mail alias, bandwidth usage

I had simple mail server and my question is about bandwidth usage of e-mail aliases. So i had eq danny@mysvr.com foward: danny@gmail.com And question is mail demon do: [MAIL] -> @mysvr.com /* ...
1
vote
2answers
145 views

Testing email locally on a windows machine

This is a question I've tried to answer for a long time now. I'm currently working on a personal project on a windows XP machine and it's come to the point where I need to send emails to test some ...
1
vote
1answer
402 views

Email flow problem in Exchange 2003

I have a problem whit some emails that are not being delivered to the user inbox. The SMTP server on the DMZ that receives email from the internet is a Symantec Brigthmail Gateway, this server reports ...
0
votes
2answers
635 views

php mail() on IIS6 not sending

This is related to an IIS server problem, or a PHP configuration, not php code. I'm running an IIS6 server with PHP installed on it, the following php code will never send an email: ...
0
votes
1answer
150 views

Exchange 2007 inbound SMTP Set-up

What would the setup look like if my network looks like this: 192.168.1.10 - Exchange server 192.168.1.1 - FireWall / Internal 10.0.0.0 - FireWall / External (imaginary IP..) 20.0.0.0 - ...
1
vote
1answer
1k views

Exim4 SMTP Authentication to Courier

I've recently setup Exim4 on an Ubuntu 10.04 server with Courier. Everything is working fine for local mail deliver, the only missing piece is SMTP Authentication. I have an account setup on the ...
1
vote
3answers
521 views

How can I use dyndns with Ubuntu and send emails from it

How can i use dyndns with Ubuntu and send emails from it? I want create a free domain with dyndns.com (mydomain.dyndns-at-home.com) How can I link the domain with Ubuntu ? How can I send emails ...
1
vote
2answers
5k views

How to configure fetchmail to send messages from remote smtp server to Gmail? [closed]

I've been trying to setup email forwarding through fetchmail from remote smtp server to Gmail account, although messages are constantly coming to my local address and accessible via "mail" command. ...
0
votes
2answers
287 views

Do SMTP servers require that the sender in an email be the authenticated account?

Do SMTP servers require that the sender in an email be the authenticated account? Or is this something that can be configured on the server? To test out my application, I've set up a Gmail account ...