Questions tagged [sendmail]

Sendmail is a free and open-source mail transfer agent (MTA), originally created in the 1980s. It is primarily used on Unix-like operating systems to deliver and transfer mail.

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29 views

Have sendmail authenticate users against dovecot (or passwd-style files)

I have set up a Debian 10 mail server with sendmail and dovecot+virtual users in preparation of a migration (the old server is also running sendmail + dovecot, but older versions and with "real" users)...
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51 views

Sending emails using sendmail in freebsd

I am trying to send a test email from command line (for debugging purpose). I cannot make the sendmail to send the email. The Ctrl+d does not work on my ssh console and I could not find a solution by ...
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58 views

sendmail does not recognize the local host name

Recently I'm learning Sendmail in CentOS,But I have got some prombles when I am following the tutorial on youtube. I have followed the steps in the video, but when I try to test the Sendmail with the ...
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513 views

How to use mail command from within Windows Linux Subsystem?

I'm using Ubuntu 18.04 from within WSL. I installed postfix, sendmail and mailutils. After some headaches I got the mail command to run without errors but I'm not getting the emails I'm sending ...
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59 views

sendmail on Fedora showing lots of relay=ouruser@localhost

After migrating to a new server now running Fedora 30, emails are working however I see logs like the below: Sep 11 10:10:01 ourserver sendmail[47214]: x8BEA1dO047214: from=ouruser, size=253741, ...
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207 views

Can I use sendmail instead of mailx in unattended-upgrades?

I've configured unattended-upgrades for apt to upgrade automatically and setup sendmail with a gmail account I made for it. Now I want unattended-upgrades to use sendmail to send me an email with the ...
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Synology & Sendmail - I can not sign my mails with DKIM

I post here as a last resort, I did not find the solution to my problem. I installed optware on my Synology DS418 in order to have sendmail. I send mail at the command line using the /opt/sbin/...
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37 views

Sendmail is not delivering emails

Sendmail is accepting mails and I can validate that by looking in the /var/spool/mqueue directory as well as mailq command. But the mail sits in this directory and is not being delivered to the local ...
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Mail is not working on debian server - Outgoing SMTP “Connection timed out”

I have Debian 8 VPS and websites running on PHP 5.6, using Cloudflare DNS servers. I tried to install sendmail and postfix, but sending mails is not working, even through the CLI. I can see syslog I ...
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XAMPP sendmail issue

I have the following configuration setup in XAMPP: In php.ini: [mail function] SMTP=smtp.gmail.com smtp_port=587 sendmail_from = *******@gmail.com sendmail_path = "\"D:\xampp\sendmail\sendmail....
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Why can't sendmail recognise the machine it is using?

I find this in the mail log when I try to send email: localhost sm-mta[28354]: gethostbyaddr(192.168.1.3) failed: 1 netstat -natp gives this one reference to 192.168.1.3: Active Internet ...
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solved: m4:/etc/mail/sendmail.mc:176: cannot open '/usr/share/sendmail-cf/feature/'relay_hosts_only'.m4': No such file or directory

I've looked for an answer to this error all over, and I keep finding only the one people would get if sendmail-cf wasn't installed. Yes the file doesn't exist, but do I try to make it and with what ...
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463 views

Could not send email with password reset using SendGrid with Django on PythonAnywhere

Could someone point me in the right direction on how the password reset, that is built-in with Django admin, is going to send an email for the password reset. I am using the following: PythonAnywhere ...
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36 views

is sendmail aliases sending the email received as a parameter when redirecting to program?

good afternoon, I am learning sendmail and had a doubt about how aliases work. If I have the entry below in my /etc/aliases import@domain.com: "| java -jar importFromEmail.jar import@domain.com" ...
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SOLVED IPv6 enabled sendmail does not send to domains with IPv4 only MX which results in “config error: mail loops back to me”

I encountered a strange problem after enabling IPv6 on my sendmail. BTW, reverse resolution is fine for my domain A and AAAA wise. Sending mail to a domain with MX A and AAAA records switched now ...
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148 views

linux - send an email where body is a line of text from a file - date dependent

I would like to add a cron task that sends an email to me@example.com once a day and includes a line of text from a file depending on the date as the message body. My file.txt would look like this: ...
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403 views

Postfix pipe emails to certain email accounts only

I have configured postfix to run a script when email is received. The script gets tirggered whenever email is received on postfix. However the problem is that it is being triggered on all the email ...
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1k views

issues setting up sendmail

I need to send emails to different recipients (many), from my gmail account, the same message for each, but different attachments. So I looked into command line mail clients and stumbled upon this ...
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sendmail with input file not working

I cannot make sendmail work with an input file. This works fine: echo "Subject: sendmail test" | sendmail -v my@email.com However, if I have file: To: mymail@gmail.com Subject: sendmail test two ...
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283 views

sendmail in slackware 14.2 unable to recieve mails but able to send

I'm a sys ad newbie and I'm learning slackware this not a production env, slackware comes preinstalled with sendmail and alpine, here's my problem, i've built the sendmail.cf file properly via cd /...
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ending txt contents in csv file by placing values in column format

I would like to get help on sending below txt contents in csv file by placing values in column format DEV-C axpp4-pkrisbtm 04-25-2018-01.15 04-25-2018-01.20 UAT AXKIN-PBBCT4 04-25-2018-22.02 04-25-...
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220 views

postfix/sendmail error unknown referring to command line

I have a php script under a wordpress theme sending emails using the mail() function. I have postfix, dovecot & sendmail installed on the server. For a long time the script functioned properly ...
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548 views

Linux mail server and Outlook configuration

I have a linux box where I am hosting my own internal mail serverusing sendmail. I used to send mails to a abc user in the mail server from my windows outlook using abc@mail keyword in the To field ...
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1answer
546 views

Use of sendmail as input mail gateway with Google G Suite

I'm attempting to use Google G Suite to host some email addresses but not all. I currently have a server hosting my domain and the MX server for this domain. There are no local email account, ...
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38 views

Does installing Sendmail(using apt install) allow my computer to act as an email server?

I am new to networking and have installed sendmail to allow me to send mail via mutt. I wanted to know if by doing this I have allowed my computer to act as an email server, or if the sendmail ...
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1k views

Sending Emails within a Docker Container

Hello I'm trying to run the following command in my container mail -s "This is Subject" someone@example.com < /path/to/file How should my dockerfile look so the above command can be executed ? I ...
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831 views

Sending email from LAN PCs to local email server

I'll start with saying: I'm not sure what exactly I need. I googled for "sendmail LAN" and variants, and it seems I need a "null client" setup. So that is my assumption, not my requirement (hence the ...
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2k views

sendmail dead but subsys locked

An Oracle 6.8 server cannot send mail. The service status is like this: [root@myserver]# service sendmail status sendmail dead but subsys locked sm-client (pid 349376) is running... I ...
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288 views

I am not receiving the email when I try to send using Perl (MIME::Lite)

#!/usr/bin/perl use MIME::Lite; my $to = 'mkumar@birdserver.com'; my $from = 'pkumar@birdserver.com'; my $subject = "Eventful"; my $message = " Hi - Test email"; $msg = MIME::Lite->new( ...
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sendmail stops sending emails after sometime

I've a fresh install of CentOS 7 (followed this guide on howtoforge https://www.howtoforge.com/perfect-server-centos-7-apache2-mysql-php-pureftpd-postfix-dovecot-and-ispconfig3 ) and it has sendmail. ...
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1k views

Edit sendmail /etc/aliases not working

I'm using sendmail to send the server (centos 7) root system mails in a external gmail account, but the amount of mails i get is massive, but only a few are actually needed. In this particular case i ...
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118 views

Send all users commands via email when user logs out

In Linux, is there a way to send an email with user session (e.g. commands) when he quits an SSH or console session?
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539 views

My mail server seems to be sending out spam and I am trying to find the cause

I have a mail server hosted with amazon aws. I setup the server on Ubuntu 14.04 with postfix & dovecot. I keep getting emails from mail delivery system saying mails are returned to sender that I ...
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1k views

Configure postfix to deliver mail to particular directory

I want to setup postfix so that any outbound mails to admin@mydomain.com are stored locally in to /apps/mails directory and each mail should have file name in YYYY-mm-dd hh.mm.ss.eml Format. Please ...
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1k views

Sending mail from outlook to linux machine

I am not sure if this is feasible. But, using sendmail or mutt or mail command, I am able to send mail from linux machine to a outlook server. Whether the vice versa case is possible ? If yes how ? ...
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4k views

Centos 7 - Sendmail not working

I'm trying to setup sendmail on my centos 7 server, but it's failing for some reason. I've opened port 25/tcp on firewall-cmd and selinux is disabled as well. It's still not working... /var/log/...
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156 views

Disable Sendmail from rescue mode CentOS 6 Virtual Server

Hello we rent a virtual server of 1and1 CentOS 6 with Parallels Plesk Panel 12 (64-bit) they have put it into rescue mode as it was "found to be part of a network of compromised machines leading a ...
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837 views

how can I view the Delivery status notification in sendmail?

I'm using a script to send newsletters via sendmail so, I want to access to Delivery status notification in case the mail failed, is there a command to list the content of DSN?
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756 views

Re-process emails from `/var/mail/root`

The mail forwarding was broken on one of my servers. Some emails accumulated in the local /var/mail/root mailbox instead of being forwarded. I fixed the forwarding now. Is there a way of reprocessing ...
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725 views

Migrate emails to new server but prevent Outlook from re-downloading them

I have a sendmail server that is nearing end-of-life. I need to move all email accounts to a new server (postfix), but I don't want Outlook users to re-download all their existing messages after the ...
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594 views

sendmail relay refusing to use @outlook.com forward

I use my own sendmail box which has been forward email to a gmail address for a while. Decided to switch to an outlook.com address and configured the sendmail server (via virtusertable table) to ...
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213 views

Configure Sendmail as Secondary/Anonymous SMTP Solution

I have a scenario where I want to allow my clients a secondary SMTP service, e.g. they are hosted on SERVER1 and using the same server as a primary mail server, Now I want to allow them to use the ...
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256 views

How to use DNS alias as sender address for sendmail

I have the following setup: My Ubuntu (14.04) server gets a host name from DHCP (real.host.de) and there is a DNS alias (alias.host.de) that points to this host name. Now I want to configure ...
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sendmail, ISP blocked port 25 of my incoming mail server

I want to setup a home mail server to receive incoming mails, but my ISP blocked port 25, so other mail clients (e.g., gmail) can't connect to my home mail server, right? I mean, I can telnet from ...
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1k views

Understanding /etc/aliases

I know that /etc/aliases is used to provide mail alias for system users (for either Sendmail or Postfix), for example, the listing like those in Understanding /etc/aliases and what it does. However, ...
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1k views

Prettified way to read mail in linux command line?

I was wondering if there is a command-line way to read the stuff that is in /var/mail/$USER in an attractive way? Thanks in advance.
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588 views

Debug or disable sendmail auth=SERVER

It seems like people are sending spam through my mailserver using SMTP server authentication. I’m getting bounces of undelivered mail The bounces contain correct Received: headers from my mail server ...
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850 views

How do you disable AUTH in sendmail?

I'd like to entirely disable AUTH on my home server's sendmail on Fedora 21, mostly because the constant fail2ban Emails are annoying, coming from constant CRAM-MD5 brute force attempts to get my ...
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72 views

Sendmail doesn't receive messages from other domains

I'm trying to set up sendmail on my server. But so far I encountered one problem: I can't receive messages from public email services. /var/log/mail.log shows nothing, like post doesn't reach my ...
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1answer
859 views

Use sendmail without standard input

I would like to use sendmail to send an e-mail from my backup software on Kubuntu Linux. However the software does not allow entering a full command line (only command name and arguments pattern ...