Simple Mail Transfer Protocol is the protocol used for sending email.

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How to get my email to send from outlook after switching to Frontier service provider

I have recently moved to a new location and brought my computer with me, naturally. I purchased internet service through Frontier and figured that my POP email on Outlook, through secureserver.net, ...
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1answer
30 views

Can't send mail with Apple Mail with Outlook.com due to SMTP

To preface, I know for a fact that the password I am using is correct as per outlook.com's instructions and every tutorial I can get my hands on. It should be my password I use to enter the account, ...
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22 views

any trick to send emails and it must be unlimated [on hold]

i tried to send emails using mailer but usually my problem is that messages came in spam folder and mailer is limited . I need solution that let me send html messages inbox to all domains and it ...
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12 views

SMTP proxy to investigate outgoing e-mails not being sent?

For some reason, using the same e-mail account that works the rest of the time, some outgoing e-mails aren't being sent by my ISP's SMTP server: Error reading from network Cause: Eudora got tired ...
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41 views

Email Issue - “On Behalf Of Blackhole”

I am experiencing an odd email issue that I haven't been able to find any answers to. I have a Ubuntu server setup with postfix that uses mailgun to send emails. I'm not using the mailgun API, just ...
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1answer
48 views

Linux/Postfix with relay: I can openssl to relay host on port 465, but postfix does not seem to connect

This looks like a tough one to me: I'm configuring postfix on my local home server running ubuntu server 14.04 LTS I was able to send outgoing mail through my relayhost on port 26, everything worked ...
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1answer
40 views

Email Recepient Limit

I was wondering whether there is a recipient limit imposed on a single email? I mean how many email addresses can a single email have. I particularly interested in the BCC. I currently use SMTP over ...
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133 views

How to send mail from a Windows batch file

I want to send a mail from a Windows batch file. Here is my code: blat test.log -server smtp.gmx.com -to dest@gmail.com -f address@gmail.com -s "test mail" -u "address@gmail.com" -pw "password" ...
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59 views

IP address of the SMTP GMAIL

would you know what is the IP address of the SMTP GMAIL (It allows you to send mail from a batch windows) @echo off set repertoire="C:\Mon repertoire\" set emetteur=email.emmeteur@domaine.com set ...
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123 views

Postfix Relay Access Denied When Sending To Gmail With Telnet

I have postfix and dovecot setup to deal with mail for my domain. imap appears to work ok when reading local mail but when i try to send an email using telnet with localhost and the smtp port it gives ...
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1answer
115 views

Printer unable to use Gmail SMTP server

I've been following this Google Apps support page to be able to set up scan-to-email using the Gmail SMTP server. The printer is a Samsung CLX-6260 FW. I've configured it with the following ...
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18 views

How can I install a mail server on my server that Quick Books can use for invoice email

I am working at a company that uses Quick Books online. Quick Books needs access to a mail server so that it can sent invoices to our customers. Our old website was hosted at GoDaddy along with our ...
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2answers
74 views

How to send out emails without using SMTP from server?

I'm trying to write a scheduled job that will send out email with attachments after exporting a set of data from the database to a group of users. The job will be hosted on the server. I need ...
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1answer
144 views

Can't send email using mail on cmd line but can using telnet smtp commands

On a ubuntu system I have installed postfix and set relayhost and mynetworks in /etc/postfix/main.cf config file. I can now telnet to port 25 on this server and send an email by issuing the SMTP ...
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34 views

Automating SMTP Configuration

The following is an excerpt from a series of instructions I am following as a list of company procedures they would like me to automate. Is the following achievable through command line/batch, and if ...
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12 views

How to configure sSMTP with CSF?

I have a fresh installation of Debian and I just installed Config Server Firewall (CSF) and sSMTP (with Gmail as SMTP server). Does anyone know how can I tell CSF to use sSMTP when it's sending ...
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1answer
230 views

How To Upgrade Pear To Send Email With Smtp send() Function In PHP

I want to send e-mail on ubuntu 14.04 with smtp php. But I can't send e-mail because smtp-->send function doesn't work. So that I decided to install pear mail packages. But when ı want to install php ...
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349 views

Sendmail Deferred: Connection timed out

I got the following "Connection timed out" errors from some of the email servers, like google: $ tail -1 /var/log/mail.log Jun 15 15:55:52 coral sm-mta[9924]: s5FAo29p007675: to=<me@gmail.com>, ...
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100 views

What is the limit for addresses in BCC in sendgrid using Outlook?

I want to send out a marketing email to a little over 11,000 email addrresses using Outlook 2007 (could also be 2010) on an account configured to use the SendGrid SMTP server. what is the limit to the ...
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1answer
67 views

Send an email whenever file is deleted from shared folder in windows 7

I am running a software on several computers at my workplace and the software can run different audio and video files stored on a shared folder in a central computer. The software runs on windows 7 ...
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2answers
387 views

Telnet to Gmail SMTP server timeout

I'm doing some testing of SMTP servers. I want to see the capabilities returned by the server in response to a EHLO. Gmail is timing out for SMTP: $ dig gmail.com mx ; <<>> DiG 9.8.5-P1 ...
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1answer
17 views

Exchange 2003 tracing spam origin, so frustrating

I have been trying to sort out this one server for over a week. It had backscatter problems due to low security settings on the Exchange. I followed a few guides to disable the NDR issues, changed all ...
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3answers
114 views

Why mail clients do not use directly the SMTP server of recipient

Normally in a email client you need to configure an SMTP server to use to send mails. When you send a mail, your configured SMTP server simply resolve the domain after the @at in the email address of ...
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1answer
60 views

How does SMTPSVC on Hotmail set hostname in SMTP header?

The daily spam to my Hotmail-account today contained a message with a forged sender addresssuspicious enough for me to check the SMTP header. The only "Received" entry was: Received: from grogrol ...
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1answer
95 views

SMTP on internal network

We a have a Qnap which uses the internal network. We would like to setup Qnap to send on notification emails to an internal smtp server something like 192.168.123.... which is connected to internet ...
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215 views

Can't send email to the internet from Postfix mail server. (Relay access denied)

I have a mail server running Postfix in my LAN with which I can send and receive emails in my LAN and send from the WAN to the LAN. I can't send from the LAN to the WAN though. I am trying to use my ...
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1answer
66 views

Configuring Postfix as SMTP relay (only)

I have a Postfix 2.5.1 on a Debian 4.0 PPC server. I intend to use this as an SMTP relay for outgoing email from my mobile phone (as my phone service provider recently dropped their SMTP server). The ...
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3answers
104 views

Cannot send mail. Is the ISP blocking my connection?

I want to send email through smtp.imsbiz.com. When I try to telnet to smtp.imsbiz.com:25, it said relaying denied. webadmin@www current]$ telnet smtp.imsbiz.com 25 Trying 210.87.250.198... Connected ...
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185 views

Sending email using Telnet

I saw many thread about sending email using Telnet, but I couldn't do that. I'm trying to connect to yahoo smtp server by : telnet smtp.mail.yahoo.com 25 The response from server is : Trying ...
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93 views

Lexmark Printer Requires Local Copy of Gmail's SSL Certificate

Recently I had to fix a problem in a clients office where their "Scan to Email" function wasn't working on their Lexmark printer. A gmail account's SMTP settings had been working with SSL for several ...
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68 views

What is the proper way to set SMTP headers for emails sent as someone else?

Some applications require that system-generated emails be sent as someone else, or said more accurately, they call for the appearance of being sent from someone else. What is the proper/acceptable ...
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54 views

Can I set-up sendmail on a LAN without a registered domain for testing mail?

I am running CentOS on a server at home which I use for development of Joomla websites. After they are developed, I move them to a hosting service. While developing the Joomla website on my home Linux ...
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82 views

How to prevent accidental emails sending to clients as CC? (Instead of BCC)

I'm trying to figure out how to prevent accidental leak of clients emails addresses when employee pastes them to CC instead of BCC. Is it a way to restrict sending cc mails to addresses from ...
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1answer
198 views

Postfix allows unauthenticated users to send emails

Hey I set up Postfix to use cyrus SASL implantation and I'm able to login and send emails, but I can still telnet on port 25 and send mails even if I'm not authenticated, which I whish to deny. ...
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1answer
25 views

SMTP Headers Guide [closed]

Is there a guide/cheat sheet that explains Email/SMTP headers in detail? I could not find any useful resources after plenty of Googling. The purpose is to understand the headers in order to be able ...
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1answer
15 views

Postfix with two vhosts

I've got this problem: I installed postfix (v. 2.10.2) on Ubuntu 13.04. I've got there two vhosts with two different sites, for example: aaa.com and bbb.com. Got those domains connected with google ...
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242 views

550 User Unknown cmd telnet error (Email spoofing)

I'm trying to send email using telnet in cmd. I have connection with telnet now. Btw I'm using a disposable email provider. C:\Users\Student>telnet mail.dispostable.com 25 then it brought me ...
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164 views

telnet 500 Syntax error, command unrecognized

I'm trying to send email using telnet in cmd. I have connection with telnet now C:\Users\Student>telnet alt3.gmail-smtp-in.l.google.com 25 then it brought me here: 220 mx.google.com ESMTP ...
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906 views

Email without SSL

I have been trying to setup LabTech Email settings. Unfortunately, it accepts only email settings that are not encrypted; no SSL/TLS i.e POP 110 and SMTP 25. Tried to setup SMTPSSL in the same, but no ...
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57 views

How to send Outlook mail when port 25 blocked in intranet

We have a build server which runs daily builds. We want to send email to project leaders after each build with details (success, fail, etc). The problem we have is that we don't have access to port ...
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1answer
238 views

Postfix is Sending Spam [closed]

I have an Ubuntu 12.04 server, hosted on AWS, that powers a dozen WordPress installations using Nginx and php5-fpm. The problem just began one day. My server was down. Panic! Whenever I turned it on ...
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1answer
373 views

How to find out the outgoing server and port from outlook?

I have Windows 7 and running outlook 2007 (wtih exchange mailserver). I want to switch to Thunderbird. Have spent some time to search both on SU and google without really finding a succinct answer to ...
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91 views

How can I hide IIS SMTP version number?

If I type the following command and connect to my production server (Windows 2008): telnet myserver 25 I see the following result: 220 myserver Microsoft ESMTP Mail Service, Version: 7.0.xxx ...
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1answer
83 views

Japanese cannot connect to european SMTP server

My SMTP server is located in central Europe and I can connect to it just fine. However, a user from Japan was not able to connect to my server using Thunderbird. I set it up together with him and ...
0
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1answer
29 views

Disabling sentbox in postfix over Squirrelmail

I have installed POSTFIX over Squirrelmail on CentOS Linux... The services I have ran are: service httpd service ssl service mysql service postfix service saslauthd service dovecot But I want to ...
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37 views

SMTP listeners on a workstation?

I'm working on a Debian 7.30 (x64) workstation. I noticed I have a couple of SMTP listeners: $ netstat -A inet,inet6 --listening | grep -i smtp tcp 0 0 localhost:smtp *:* ...
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162 views

Unknown attack to SMTP server

From yesterday I have a problem with sending messages via my SMTP server (MS Windows Server 2012 R2, software: MailEnable 8.02 Professional). I found that there are constantly sending some emails via ...
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1answer
204 views

Postfix: relay mail to smart host for specifc users

Currently i have a VPS that has a host of email accounts on for several domains. most are simple and have all local mailboxes. but i have one user that wants to have a hosted exchange account but ...
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33 views

How to use emailrelay?

I'm trying to use "Emailrelay" to make Windows Server 2008 send emails. Googleing sugests that this would be the easiest option to send automated emails from the "Task Scheduler", but I can't seem to ...
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43 views

How to determine if STARTTLS IMAP & SMTP connections are encrypted

I use Thunderbird to connect to an IMAP and SMTP server. This works on the port numbers usually associated with unencrypted mail, but I have specified STARTTLS and am told that the servers enable ...