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

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custom domain email forwarding catchall recovery

In short, I'm trying to restore mailflow for a free domain I setup with unonic. (3 technically) They worked fine for about a year. *@example.tld would all forward to my@personal.email. January 6th, ...
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Postfix SMTP mail is sent to SPAM

I have installed postfix mail server in ubuntu machine. I configured the mail server as well as DNS properly. Mails are sent from our mail server properly, but all the mails are listed in the spam ...
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5 views

How to configure and use SMTP server for JAVA MAIL API? [on hold]

How to configure and use SMTP server for JAVA MAIL API,I am trying since 5hours,But unable to do.As beginner, Please help me by any documentary.
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8 views

How to investigate for mail not sent/received

I've got a classic ASP page that sends emails to registered users. From one month to date, some users which have their emails on 3 specific domains, are not receiving emails. Some others with their ...
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1answer
17 views

send mail through msmtp

I've been trying to send mail with msmtp with no success Configuration file: ~/.msmtprc defaults auth on tls on tls_trust_file /etc/ssl/certs/ca-bundle.crt logfile ...
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42 views

Hide email sender's IP using Tor

Hide email sender's IP using Tor I've developed a simple application to send emails using SMTP. The application connects to mail.server.com (with IP a.b.c.d) on port 587. All I want is to hide my IP ...
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21 views

550-Please deliver mail to the address specified in the MX records for this 550 domain

I have a PHP script which emails the results of a form to a specified address. Previously it was working fine but now it's not sending email anymore. When I check the error log, I see this error: ...
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1answer
160 views

552 This message is not RFC 2822 compliant [smtp-07.iol.local; LIB_670]

I have had autoresponder emails set up for a while already, and suddenly I get the following message as undelivered. I only got this one time, so it seems not to be a general problem. I checked RFC ...
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2answers
16 views

What have I done wrong with my Postfix config?

My mailserver has been sending emails fine and dandily to newsletter subscribers via the Mandrill app, but I have not been receiving emails on the domains I want, I only want mails to go to the user ...
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1answer
60 views

Email not being sent from Moodle [closed]

I’m using Moodle where I allow user to register themselves, after which an email is sent to them. However, when user are registering, the email is not being sent and I’m getting the error: Tried ...
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49 views

Postfix - SMTP mail delivery failed with “Connection timed out” error

I have installed postfix mail server in ubuntu machine. I am facing some issues with the mail sending to other domain mail servers (Google, Yahoo, Outlook...). I am using virtual domain to send the ...
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45 views

How to configure to send emails from localhost pc with postfix xampp and xubuntu configuration

I am building some website and for testing purposes i need to configure somehow to be able to send emails from my pc. I have xubuntu installed on my home pc and xampp for local development. I have ...
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21 views

Is there a way to have multiple SMTP sending services configured in WHM?

I have WHM installed on my server and I have Mandrill setup to handle all mail requests. Right now all the mail runs through that SMTP server. Is there a way to take a domain on the server, ...
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45 views

macosx: How to unblock SMTP port?

In /var/log/mail.log I see runs of time-out errors in quick succession, like this Dec 13 15:50:31 myserver postfix/smtp[2911]: connect to alt2.gmail-smtp-in.l.google.com[74.125.138.26]:25: Operation ...
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0answers
22 views

How to set up a sendmail relay using HP-UX 11.x

I need to setup and HP-UX 11.23 system as a mail relay to collect mail from other internal HP-UX servers and relay them to the MS Excahnge operated smtp relay for delivering internet bound mail to the ...
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99 views

Connecting Brother MFC-L2740DW to SMTP via SSL

Its very frustrating to see that I bought this MFC-L2740DW just a few weeks ago and its 2014 released printer with AirPrint support. I'm not able to activate a feature called 'scan to email server', ...
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21 views

msmtp complains no auth method found

msmtp output: <-- 220 example.com ESMTP Postfix (Ubuntu) --> EHLO example.com <-- 250-schemacs.com <-- 250-PIPELINING <-- 250-SIZE 10240000 <-- 250-VRFY <-- 250-ETRN <-- ...
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30 views

Moved to Office 365, want to use SBS exchange as SMTP relay

I've recently setup an Exchange Online subscription with Office 365 - for all the benefits of cloud email in a small business. My onsite server is Windows SBS 2011. My problem is that my internal ...
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2answers
107 views

How to use unencrypted SMTP/POP3 to connect to Outlook.com, Gmail or other email services?

My new multifunction printer only works with unencrypted SMTP and POP3 (so 90's!), but most of the popular email services such as Outlook.com and Gmail only support encrypted SMTP and POP3. Is there a ...
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69 views

Mail Enable: mail server requires authentication when attempting to send to non-local users

I get this error: Bad sequence of commands. The server response was: This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client ...
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44 views

Multiple postfix instances one host

I have a server on which i need to add setup a second postfix configuration to send e-mail (doesn't have to receive) that's being sent in from a PHP web application that's hosted on the server aswell. ...
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1answer
94 views

SMTP fails using Thunderbird after dropping Comcast, installing CenturyLink

On two Windows 7 PC's, an Android tablet, and Android phone, a dozen email accounts have been working fine for many years. I disconnected Comcast and installed CenturyLink service using Actiontec ...
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132 views

Postfix SMTP message being marked as SPAM by Gmail and Yahoo

I'm having a problem getting my low-volume of legitimate email messages through the SPAM filters of Gmail and Yahoo. I have followed Gmail's guide here: https://support.google.com/mail/answer/81126 ...
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Able to receive, but not send email over SMTP from VPS. I don't think I'm being blacklisted

The error I get is "421 Downstream server error" or something similar. Up until a few days ago I could send mail without any trouble. I've searched around, and most other people with this problem end ...
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256 views

Why does postfix give “lost connection after EHLO” error when Gmail tries to connect to my SMTP server?

I'm trying to setup my gmail account so that I can send emails that appear to come from another email address I own (myuser@mydomain.com). Instructions to do so are here. When I try to do it, it ...
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1answer
40 views

How does email routing work?

I want to understand how email routing works. Lets say I am trying to send a message to someone @gmail.com. According to my current understanding, the following steps happen: DNS MX query on ...
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2answers
73 views

How to deal with mail senders failing on STARTTLS?

I try to use my mail server richtercloud.de for subscriptions to vger.kernel.org mailing lists. I set up postfix 2.11 running on Ubuntu 14.04 and sending and reception works. I set up postfix to ...
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1answer
35 views

What does `!+local_domains` in router specifications of exim4 config file mean?

Following several tutorials on how to configure exim4 (e.g. http://www.datadisk.org.uk/html_docs/exim/routers.htm) I started wondering what a good explanation for !+local_domains in the specification ...
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1k views

Workaround for adding forward addresses to Gmail as aliases

I went to add an alias to a forwarded address (managed by GoDaddy, ie myemail@mydomain.com) in Gmail, and I noticed that Google changed their system. In the past, after you entered the name and email ...
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18 views

How to add new 'From' email id each time sending email using PostFix server

I am new to PostFix and have setup PostFix as a server recently. In the testing, PostFix is working fine and relaying the emails with 'From' email address stored in the PostFix credentials files likes ...
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144 views

How to ask for return receipt and set importance in Mutt?

I would like to be able to ask for a return receipt and set importance levels in emails when I am sending emails from Mutt (using Mutt Smtp sender). I can not find a way online, maybe not doing the ...
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202 views

Spam filtering on a VPS at SMTP using WHM

CENTOS 5.10 i686 xenpv – server WHM 11.44.1 (build 18) I am addressing this problem: I have a VPS set up as MX for several of my domains. The e-mail for these domains are just aliases to other mail ...
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74 views

dovecot WILDCARD SSL (certicate.crt, private.key, intermediate.crt) not working

I have installed dovecot and postfix and got it working, but when I change the ssl_cert_file, ssl_key_file and ssl_ca_file dovecot configuration to my WILDCARD SSL certificate (working on apache) it ...
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22 views

Postfix not working with non self signed SSL Certificate

I have installed postfix and generated a self signed SSL certificate, it was working, then, I tried to configure it to use my WILDCARD ssl Certificate that is configured to apache2. Then I started ...
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131 views

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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2answers
505 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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29 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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84 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
191 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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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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2answers
4k 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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1answer
1k 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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1answer
3k 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
430 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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62 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
961 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
1k 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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59 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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30 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
524 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 ...