Questions tagged [sendmail]

General purpose email routing software that supports mail transport via TCP/IP using SMTP

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using sendmail server when smarthost is added, unable to send mails to my mailbox. Have anyone have milter-bcc configured successfully?

using sendmail server when smarthost is added, unable to send mails to my mailbox. Have anyone have milter-bcc configured successfully ? or do we have any alternative process that worked for anyone ?
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Disable local delivery sendmail

I'm trying to disable local mail delivery on my sendmail server (CentOs 8). I've read many posts about this (for example: Disable local delivery in Sendmail) but non of the awnsers seem to work. I ...
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Commercial SSL cert doesn't work on sendmail

I am running a mail server with sendmail and have generated key and csr with openssl and purchased a commercial certificate. When I use the commercial cert in sendmail.mc and try to send email I am ...
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21 views

SMTP server not sending DSN

Is the outgoing smtp server expected to notify sender of failure in upstream transfer giving this scenario?: User A tries to send email message via his Outgoing SMTP (A-SMTP) server to recipient B. ...
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Secure Sendmail against Backscatter

I'm running Sendmail 8.15.2 on Debian 10.3. My server is again and again blacklisted on backscatterer.org (normally it's listed, after four weeks it's delisted again, but three or four weeks later it'...
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How do you specify the upstream mail-server that “sendmail” sends to?

Sorry for the "stupid question" but I don't know a lot about sendmail so I conclude that the fastest way to find my answer is ... just to "ask someone who knows." :-) I have a Laravel website on ...
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658 views

No package sendmail available

Unfortunately, my server is unable to send email. I found the following tutorial by searching the web: https://pepipost.com/tutorials/install-sendmail-server-centos-7/ But when I enter the sudo yum ...
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Sendmail sends everything except for mails with recipients of the same domain

I am using the following setup. The client's DNS is pointing to Hostgator, but the client wants to test if his site runs faster on DigitalOcean. So the only DNS records I am pointing to DigitalOcean ...
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How to whitelist users at the MX server, instead of the mail server, using Sendmail

I am running Sendmail 8.15.2 on Fedora 30 with a MX relaying to a mail server. The relay-domains file works fine to funnel only the desired domains from the MX to the mail server. But the mail server ...
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Cron Job is not sending output of script as email, while same script is sending email if being run from cli [duplicate]

I have a script which gives output in a file and doing few awk operations on that output file and mixing the output of two files using paste -d and then sending the email of newly created file to ...
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relaying denied - why is sendmail authenticating the sender instead of the recipient

I am trying to set up an email server that receives email from a mx server using sendmail software on Fedora 30. When the mx forwards email to the email server, the logs show a Relaying denied - ...
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${mail_host } macro on sendmail.mc is returning an empty value

I've created a custom header and I'm trying to set its value to something like username::domain:servername. For example, messages from user@mydomain.com using myserver as the MTA should generate a ...
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72 views

How to add custom headers on sendmail

I have a sendmail server and I'm trying to set it up to add a custom header called "Feedback-ID" to all outgoing messages in order to keep track of the messages sent from the server using Google's ...
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CentOS 7 sending e-mail crons while sendmail is not installed

Background I have configured my crontab to send me emails that way MAILTO=myemail@company.com ... And I am receiving the e-mail in myemail@company.com's inbox through the company SMTP server ...
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141 views

Email from vcenter 6.7 fails to deliver

Desired end state: I would like to receive alert email from vcenter 6.7. Specific problem: After configuring vcenter 6.7 (in the UI) with an SMTP server that works as tested from the vcenter shell, ...
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Writing an email with proper salutation and declaration in bash script

Running out of space "/dev/mapper/LVMG1-tmp (87%)" on Hostname as on Mon Feb 3 15:44:03 IST 2020 above is the message I'm getting in the email but I need to use a proper salutation and declaration ...
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121 views

can't send email from php-fpm

I can send emails from the command line using sendmail, I can call a php script ( php -f sendmail.php ) from the command line and the mail sends successfully, but if I call the exact same script ...
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340 views

Cannot get Sendmail to work on Ubuntu 18.04.3 (LTS) x64 on DigitalOcean Droplet

I have taken these steps (gathered from numerous posts in this forum and others) to install and configure SendMail on my DigitalOcean droplet, running Ubuntu 18.04.3 (LTS) x64, but I have been unable ...
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69 views

Is it possible to have nullmailer resolve recipient's MX servers like sendmail does?

I installed nullmailer on a Debian 10 VPS. root@:~# cat /etc/nullmailer/remotes hotmail-com.olc.protection.outlook.com echo "Subject: test" | sendmail -v me@hotmail.com works, I receive the e-mail. ...
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Enable fail2ban to send out emails without installing too much extra software (like postfix) [duplicate]

I need fail2ban to send out email notifications to myself. It runs on a Debian 10 minimal install All of the tutorials I found simply install the full email packages like Postfix or Sendmail, and ...
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how to make sendmail not deliver locally for certain users

I am using sendmail to send emails via PHP from my webserver. Email for the actual inboxes is hosted elsewhere. My hostname is set in /etc/hosts When mail is sent, and there is an error, it comes ...
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Sendmail.mc MAIL_HUB and LOCAL_RELAY for multiple domains

I have set up sendmail mail_hub and local_relay options using the answer from here: Disable local delivery in Sendmail However, we now have multiple domains (mydomain1.com and mydomain2.com) sending ...
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Sending files from a TS server to a client workstation

Due to concerns with viruses, my boss wants to turn off the clipboard redirection on our TS/RDP servers - so that there is no possibility of copying files to the server. He does however, want to ...
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How can I configure postfix so all e-mails from php mail will also be scanned with spamassassin?

I see a bunch of articles about how to scan mail in postfix from a certain IP address in the network or via submission, etc. But I think php mail uses sendmail and to inject the mail locally. What ...
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Mxtoolbox and sendmail

I create a server with sendmail and I realy need your help. I use sendmail for incoming and outgoing emails. I use ubuntu 18.04 and when I check https://mxtoolbox.com/SuperTool.aspx?action=smtp%3aslo-...
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Sendmail relays to 127.0.0.1 instead of MX record

I am new to sendmail. For some reason the mail are relayed to 127.0.0.1 and its not find the To: domain mx record. Oct 7 00:17:46 e-pubxxx sendmail[1732]: g975HjZY001732: to=unix@sysmail.support....
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141 views

Sendmail submit.mc for local mail submission

I'm having an issue with Sendmail (I have 8.14.7 on RedHat Enterprise Linux 7) in that mail submitted locally by scripts on the server is having the domain name changed. I have domain1.com domain2.com ...
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29 views

Sendmail is not working to when external IP is trying to connect

I have CentOS with following for sendmail DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl Where i need a remote location device to send SMTP mail. But the remote location always getting Connection refused ...
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51 views

Sendmail two-way SMTP integration

I have a special purpoice module (Processing module in the diagram), which accepts email via SMTP, processes it and then sends it out via SMTP. I need to configure Sendmail MTA so that every new email ...
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29 views

Local Sendmail Changes Domain Name for Local Submission

I have sendmail Version 8.14.7 installed on Red Hat Enterprise Linux 7. I have two different domain names associated with my single IP adddress. They are listed in the /etc/hosts file and in the /etc/...
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Email in csv file blocks from email to be sent

I have an email in csv file ( mm@airl.in) . This is blocking the email to be sent . If I change the email to any other domain , it works . For eg mm@airl.com or any other email. I am using the below ...
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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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Sendmail and non ASCII characters in adresses

Does anybody know of plans for support of EAI and SMTPUTF8 in sendmail? I could find very little about it. On the same note, does anybody know if sendmail's development is alive/dead/comatose? The ...
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335 views

Is it possible to block email sender names in sendmail on CentOS?

We have been getting a lot of fake emails sent to employees acting like our CEO and our firewall is not capable of blocking specifically what we want. The emails come in from regular gmail accounts ...
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Cron process calling sendmail (ssmtp) seemingly succeeds but without actually sending email

I have found several other threads about sendmail or ssmtp failing to send emails through CRON processes BASH scripts, but my issue appears to be a little different. This is not a PATH variable ...
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57 views

Struggling to configure sendmail right with email on same domain

I have a situation that probably unusual. I run a handful of services I find useful at my domain example.com. example.com is pointed to my VPS server via A record and it's associated services work ...
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sendmail yesterday normal! Today receive but not deliver

yesterday i was receiving emails from my domain and directing it to the gmail server and others normally. Today he simply stopped delivering, he receives but does not forward. I'm using good old ...
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228 views

Sendmail and <CRLF>.<CRLF>

I have a Sendmail MTA running version 8.15.2 on Debian 9 that relays mail for a single domain. My issue is that when the server encounters a . at anytime after the headers and the DATA command, it ...
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Sendmail - convert 500 fatal errors to 400 temporary errors - possible?

I run a couple of email relay hosts at work. A number of customers use ProofPoint as email washers, so their MX record in DNS is something like mxa-002d7b01.gslb.pphosted.com which washes the mail ...
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94 views

sendmail change domain name / it uses local hostname

I have an AWS EC2 instance on debian. I installed sendmail to use it with php and send emails. My emails go to spam, so I put an SPF record on the domain name, but it still goes in spam, because ...
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smrsh cannot stat procmailrc

I am attempting to use procmail to route email for virtual users into different folders (specifically, I want to deliver to a user's spam folder if spam assassin assigns a high score). The MTA is ...
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51 views

sendmail MTA not working with smtp relay - error service unavailable

I've been trying many days to configure sendmail with my G suit custom email address with no success. I've configured everything including TLS, AUTH, App password, and relay settings etc as per google ...
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66 views

Sendmail not sending mail as generic alias

Following the advice in this answer and the steps listed here, I've added the following to my /etc/mail/sendmail.mc file and compiled it with m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf. The ...
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Linode (Debian) box with multiple web apps - is it possible to send emails from multiple domains via sendmail?

I have a Linode instance in which I'm going to host several small-ish LEMP apps. Each of these apps need to send emails to users (mostly for account registration... forums/comments and whatnot). I'd ...
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Sendmail error - cannot mail directly to files

As a continuation of this question, I did some more research and found this answer on SuperUser which seems to have solved my issue with sendmail being unable to write a particular file. Specifically,...
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542 views

“Can not write to queue directory” error and other sendmail issues after updating linode from Debian 8 to Stable

I followed this tutorial to upgrade my linode instance from Debian 8 to Stable. In the wake of that upgrade, I've had several errors/issues with sendmail. $ which sendmail doesn't return anything. ...
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36 views

sendmail command executes without error but not actually sending mails

I am trying to send emails from my ubuntu server using sendmail command. I ran command echo "Subject: Sendmail test" | sendmail -v <My_Id>, which ran without any errors but still I don't ...
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1k views

Laravel 5.5 Send Mail with Sendmail driver CentOS - (Outgoing) Connection timed out

I'm trying to send emails with sendmail driver but it isn't working and I got no errors. My .env file: MAIL_DRIVER=sendmail MAIL_HOST= MAIL_PORT=587 MAIL_USERNAME=null MAIL_PASSWORD=null ...
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44 views

Sendmail trying to find hostnames in headers for no good reason

I have a client who uses an external mail server to log and filter their inbound email before passing it on to their main mail system (which is Office365). The external server is running Sendmail, ...
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284 views

FreeBSD: system is sending mail for any user to an external smtp - why?

There is a problem with one of my jails. All Jails sending their mails for root to root, except one jail (nginx). This jail sends mails to root@jailname.domain.tld. My Postfix is configured to accept ...

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