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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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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3answers
96 views

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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1answer
15 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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12 views

Mails from webmail ends in gmail spam - can I use smtp?

I finally managed to setup my cPanel mails so that I can send from SMTP and get the mail delivered (even on Gmail, yay!) However, every time I send from one of the webmail clients ...
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1answer
36 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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74 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 ...
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0answers
73 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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1answer
36 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
28 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 ...
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25 views

hostname -f shows reverse DNS twice

On a Debian 4.7.2-5, I got some problems sending mail correctly with sendmail. It appears that ELHO sender is different from domain name. When I ask machine for its hostname FQDN : hostname -f I ...
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2answers
163 views

Problems automating sending mail through a bash shell script [closed]

command: echo "define(`SMART_HOST',`smtp.server.ac.in')" >>/etc/mail/sendmail.mc Output : -bash: command substitution: line 1: unexpected EOF while looking for matching `'' -bash: command ...
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1answer
24 views

A Linux Distribution w/ Version which contains Sendmail version 8.6.9

I'm looking for Sendmail version 8.6.9. What distribution (I don't think that matters) or version of said distribution contains the old 8.6.9 version of sendmail. If I'm going about getting that ...
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3answers
1k views

Is sendmail a smtp server? Is there any difference between MTA and mail server?

I am new to mail and do not exactly know how it works. I have seen administrators use sendmail to send out email. Is sendmail a smtp server or is it a client that need to relies on smtp server to ...
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0answers
86 views

sendmail: move deferred, timed out mails to the end of the queue

In some cases, a mail isn't sent successfully and remains in front of the queue for some reasons. Say: $ mailq /var/spool/mqueue/q6 (1 request) -----Q-ID----- --Size-- -----Q-Time----- ...
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1answer
859 views

Configure Sendmail Server to accept external incoming emails

For security reason sendmail is by default configured to accept connection from local system (127.0.0.1), to avoid open mail relay problem. But, How do I force sendmail to accept mail from the ...
2
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0answers
330 views

mail rejected with error 421 connection rate limit exceeded

I am running debian jessie with sendmail 8.14.4. I do not find where is the setting to disable the mails to be rejected for a certain host and i get periodically this message: May 28 16:20:30 mx6 ...
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32 views

sendmail is adding domain on top of another doman when sending email

Need your help in sendmail, as I'm stuck with this issue for more than a week. Currently I'm facing issue with sendmail in RHEL5.9 OS. I have my sendmail configured to send email to outside world. ...
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1answer
138 views

Outlook: Switched from POP to IMAP. Mail doesn't send from OUTBOX when From address doesn't match default IMAP folder

I wanted to start using IMAP for all my emails, that i am currently accessing using POP. There are about 10 different email address that i previously had all going to 1 PST file. Creating new IMAP ...
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0answers
35 views

bad text alignment with sendmail

I'm trying to send a mail and in the text of the mail put like these: xxxxx yyyyy zzzzz ----- ----- ----- 2424 324 23432 I send the email with sendmail but it shows me: xxxxx ...
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0answers
119 views

sendmail think every word in a message is a recipient

I encounter a strange problem in some mails. sendmail things that every word of the message is a recipient which causes strange behaviour that I do not know how to solve. if someone has any ...
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0answers
61 views

why did sendmail generate this mail?

Today I received this strange mail generated by sendmail to one of the recipients from the aliases file. it is the first time we get this From root@ftp.secret.net Mon Feb 2 11:35:15 2015 Received: ...
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0answers
111 views

PHP sendmail permission error

If I use php sendmail (already configured it with the right path on php.ini file and restarted the apache + sendmail server), it always gives permission errors like: 2014 Dec 30 18:14:46 Gaming ...
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0answers
293 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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1answer
31 views

Is there a way to prepend to every email in Linux?

I want to set up my SMTP server so that every email I send has the same tag [TAG]at the beginning of the subject. Is there any way of achieving this?
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1answer
412 views

Tuleap: mail configuration on CentOS [closed]

we are new to the tuleap community. in order to evaluate tuleap, I have made a full instalaltion on a fresh Centos 6.5. The mail feature seems not to work which is critci as it is the way to validate ...
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1answer
761 views

Error sending email. Address is missing domain

I am trying to install an email server on a VPS box, using the following programs: Sendmail+Dovecot+Horde Now, I believe all y configurations were correct. Yet, when trying to send emails from ...
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0answers
50 views

Use a custom sendmail binary in Thunderbird

I would like to add an option to "Outgoing Server" that uses a custom local sendmail binary (in my case for notbit) like it is possible in Evoution: Is there such an option in Thunderbird? (german ...
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0answers
296 views

incoming mail is not forwarded to alias in sendmail

What I want to achieve is to forward incoming messages: Incoming messages to webmaster -> myGmail@gmail.com When I send a dummy message from gmail to webmaster@mydomain.com it's not forwarded back ...
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2answers
199 views

Sending mails and narrowing what script does it

I'm using a very old Ubuntu server that was some time ago a mail server which was infected. Sadly there is a running web page on that server. Some script/page/malware is trying to send a lot of spam - ...
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2answers
4k 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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0answers
243 views

Sendmail + Active directory

I've got a freebsd server which has sendmail, dovecot and openldap installed. Let's say it's called name.com I want to integrate it with Active Directory, so sendmail can look up users in AD and if ...
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97 views

Local SMTP Server — prevent spam flag?

I opened up port 25 on my router, so now I can use sendmail to send email. However, the emails I send are being marked as spam by my personal gmail account (understandably). The "from" field defaults ...
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0answers
145 views

sendmail for local network / home networking

All the sendmail configuration I found so far are either allow connections from local host (127.0.0.1) or anywhere (0.0.0.0). How to configure sendmail to allow connections from local network ...
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0answers
2k 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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1answer
236 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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1answer
219 views

Why my freebsd has several sendmail processes?

While using freebsd 8.2, I noticed, by top, that several sendmail processes are always running. I never explicitly start any of them. Is it safe if I just kill them? And how can I detect which ...
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0answers
188 views

Sendmail local domain relay

Sendmail on webserver.mydomain.com is sending all emails properly except email addressed to anyone@mydomain.com. mydomain.com's mail is not handled locally and mx records are configured to point to ...
2
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0answers
1k views

Received: (from www-data@localhost)

All mails coming from my server has Received: (from www-data@localhost) even though I've set 127.0.0.1 mydomain.org mydomain server2 in /etc/hosts. I think that's the reason why it's ending up in the ...
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1answer
2k views

Getting connection timeout when using sendmail

I’m using CentOS (basically): $ uname -a Linux sandbox.my-domain.com 3.4.76-65.111.amzn1.x86_64 #1 SMP Tue Jan 14 21:06:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux and trying to send email using ...
0
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2answers
229 views

Formatting a file for sendmail

How can I format a file so I can just do cat file | sendmail? By putting Subject: This is the subject, I don't need to specify the subject in sendmail, but adding the To: myemail@hostname.com field ...
2
votes
3answers
2k views

Debian sendmail Cannot write

I had a working sendmail configuration on my debian server, i tried to put a postfix to receive email but abandoned, remove postfix, re install sendmail but nothing work anymore :( here is my ...
6
votes
3answers
9k views

Changing default from e-mail address for system accounts when using sendmail

I would like certain system accounts (root and www-data) to have the header From: Example Company <noreply@example.com> when e-mail is sent using either the mail or sendmail commands, or from ...
2
votes
1answer
802 views

How to disable the hotkey to send a composing message in Outlook 2012?

I often accidentally send incomplete emails by hitting Alt+S. I want to turn this hotkey off when I'm using Outlook 2012. How can I do this?
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0answers
132 views

DKIM only filters from pine, not php mail

I've setup DKIM filters by following the steps on this page: http://blog.mixu.net/2009/11/03/setting-up-spf-senderid-and-dkim-on-centos-5-3-using-sendmail/ I've verified that DKIM Signature headers ...
5
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4answers
2k views

What all is required for email from my server to pass through spam filters?

I have a serverbeach server with postfix installed. The hostname is something like p3204059.pubip.serverbeach.com The FQDN is specified as NONE for the server itself. I clicked change ptr record, ...
0
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1answer
261 views

Return address with sendmail says '<user>@localhost.localdomain'

I don't know why, but the return address of an email sent through sendmail using mailx says <user>@localhost.localdomain even though I have set LOCAL_DOMAIN to jwd.sytes.net. It works when I put ...
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0answers
238 views

Dovecot+Sendmail+MailDir on Redhat 6.4…How?

Okay, there is a lot I have read through and I have setup everything in Dovecot (v.2.0.9) that I can recognize from the instructions. I have a Maildir directory setup, using both IMAP and POP3, using ...
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0answers
77 views

Ubuntu sendmail relay with username and password

I have a Ubuntu server which I want to setup a mail server on. Now, I've heard that sendmail is the only mail server that supports a relay server. Why I need a relay server is because my Ubuntu Server ...
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0answers
679 views

sendmail does not send mail on Amazon Linux server

I am managing several servers at Amazon EC2, and one of them is not sending mail at all, strangely. All of them were set up using default Amazon Linux 64bit. The mail agent is default sendmail, and ...
14
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1answer
56k views

Scheduled and recurring email in Outlook?

I need to send some emails at a specific time of the day and need to do it every day. How can I do it with Outlook? Delay delivery helps to send mail at a specific of time; but how to create new mail ...