Questions tagged [sendmail]

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

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vCenter appliance won't use mail relay server

tl;dr: - sendmail is configured to use a relay server but still insists on using 127.0.0.1 as the relay, which results in mail not being sent. We have the open source vCenter appliance (v 5.0) ...
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2 votes
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Getting sendmail to install/work for using php mail()

I'm running WordPress on a Ubuntu VPS. When WordPress tries to send an email like a password reset or registration email it never gets delivered. WordPress uses php's mail() function. I figure it's ...
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PHP Web Mail going to spam folder

I was working for my college website, and I wrote a php script that sends email using php mail function. But the problem is, all the emails that I send are going into the recipients spam/junk Folder. ...
Ritesh Kumar Gupta's user avatar
2 votes
4 answers
4k views

Is it possible to include subject lines in the default sendmail maillog?

CentOS 5.8 I'd like to be able to track an email based on Subject line. The default log of 9 in SendMail doesn't appear to include that information. My questions are: What is the minimum ...
Mike B's user avatar
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1 answer
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Can't Send Large Messages Using Sendmail CentOS 5

I have recently replaced a Fedora Core 3 server with one running CentOS 5 for the purposes of a mail relay in a DMZ. My problem is that when the server is sending messages to a particular remote ...
David Mackintosh's user avatar
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3 answers
2k views

How can I forward email to a perl script on Linux?

I would like all mail sent to a particular alias on a Linux machine to be processed by a perl script but sendmail is giving me a "Service unavailable" error and I don't understand what I'm missing. I ...
Graeme Perrow's user avatar
2 votes
0 answers
914 views

AWS amazon SES stopped working suddenly

I am not able to send the mail from aws.amazon SES since from Monday (30-10-2012) previously it is working fine suddenly it stopped working. I got following is the errors A PHP Error was encountered ...
Soojoo's user avatar
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Sending mail to an non-existent user, where should it go?

When I sent a mail from the command line, where should it end up? (I want to bounce all invalid mail from outside because, spam.) Is there a way for it to give an error saying the user doesn't exist ...
Chloe's user avatar
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11 votes
3 answers
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Linux- Is an MTA required?

My VPS image (Debian 6) comes pre-installed with sendmail as the MTA. I will use this server as a web server, and maybe other usages but not as a mail server. I want to remove as many unneeded ...
bernie's user avatar
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3 votes
1 answer
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How can I determine which queues/directories are being processed by SendMail queue runner?

I've got a CentOS box running multiple instances of sendmail. Each of those instances have separate queue directories. As far as I know, I only have a single queuerunner process and I'm not sure if ...
Mike B's user avatar
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Where are incoming messages queued/stored when sendmail is communicating with a milter?

CentOS 5.x | SendMail I'd like to better understand how milter hand-offs work. When a remote MTA initiates an SMTP session, my understanding is that Sendmail hands the message data off to the ...
Mike B's user avatar
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Block user from sending Email to the outside in SENDMAIL

I have a CentOS server with Sendmail installed and use Fetchmail for mail retrieval. My email server is working perfectly, but I now need to prohibit a user from sending emails to the outside. How ...
Usman's user avatar
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1 vote
1 answer
133 views

Sendmail's maillog polluted by dkim-filter

I just added domain keys to my sendmail configuration and everything appears to be working. However, upon reviewing the maillog I get a ton of these when an email gets sent or received: Oct 4 09:42:...
Jeff's user avatar
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2 answers
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Output php mail calls to log file

This question relates to the question found here: Find the php script thats sending mails Trying to do the exact same thing but can't get the log to output what I need. Not too experienced with ...
Tom McQuarrie's user avatar
1 vote
2 answers
10k views

PHP Mail Relay via Remote smtp Server [duplicate]

Possible Duplicate: How to configure php.ini with remote SMTP? We have a php application running on Linux which sends emails to there users. Currently its setup like php.ini is configured to ...
Toqeer's user avatar
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Sendmail from domain to same domain

Since I separated my mailserver from the apache/webserver for the same domain, I worry about mails which are sent e.g. via php from the webserver to @same-domain.com. It's trying to deliver the ...
ledy's user avatar
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1 vote
1 answer
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sendmail Name server timeout

Complete sendmail newbie here... I've been trying to get mailing to work in PHP and I've root caused it down to sendmail's complaint about "Name server timeout": >sendmail -t -v >From: help@me....
broody's user avatar
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1 answer
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Sendmail Round-Robin Relay Configuration

I'm trying to configure my mail server to deliver mail to relay servers in round-robin fashion using Linux and sendmail 8.13.8. I want to achieve the following: Let's say I run mail.example.com as ...
Salieri's user avatar
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8 votes
2 answers
927 views

Dealing with SMTP invalid command attack

One of our semi-busy mail servers (sendmail) has had a lot of inbound connections over the past few days from hosts that are issuing garbage commands. In the past two days: incoming smtp ...
mark's user avatar
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1 vote
1 answer
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Sendmail - Multiple Domains, One Box - Blocking One Or Two Domains

I have a number of domains hosted at a web hosting service. They use sendmail to handle incoming email. I have six domains on this service (which we can call aaa.com, bbb.com and so on). Each email ...
Tango's user avatar
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3 votes
2 answers
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Sendmail & IpTable Rules

I need to setup IpTable Rules for a server with nginx, ssh and sendmail. Now, the problem is, with my rules I can not send emails to other hosts anymore. Emails to localhost do work, but sending to ...
s1ck's user avatar
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1 answer
874 views

Solaris 10: Disable default sendmail inboxes

An inbox is automatically created for every UNIX user on the box, when the mail is sent to the nodename of the system. Is there a way to disable these default inboxes? An example of one of these ...
700 Software's user avatar
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Send email from server to Google Apps email address (same domains) [duplicate]

Possible Duplicate: Outgoing mail from linux not being delivered I'm sending email from a server, let's say domain.com. I also have Google Apps email set up for hosted email, same domain, domain....
Orlando's user avatar
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1 answer
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Sendmail alias file escape character

i am trying to configure sendmail alias to escape '@' to treat it as a user for example test\@domain.com:[email protected],[email protected] I have user user [email protected] in virtusertable as test@...
Dev Jadeja's user avatar
1 vote
1 answer
10k views

DSN Service Unavailable

I am having trouble with a newly installed server that we have just migrated to. I am running sendmail and cannot send mail to a specific domain. Mail everywhere else appears to work. Logs say: DSN: ...
Lock's user avatar
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1 vote
2 answers
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Sendmail access_db configuration. How is it used and how to write it

I am reading about the access_db feature of sendmail. Apparently it looks promising as a preventive way to stop spamming. I have several questions related to how access_db is used. So basically I ...
Xavier_Ex's user avatar
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1 vote
1 answer
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What is the failover logic when SendMail is smarthosting to a FQDN with multiple A records?

CentOS 5.x | SendMail This is somewhat related to my other question about round robin but as it's more general, I thought I'd separate it out. If SendMail is smarthosting to a FQDN with multiple A ...
Mike B's user avatar
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-1 votes
1 answer
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sendmail failed to send mail: domain-does-not-exist error

I configured sendmail to send mail with a Gmail smtp relay, following the instructions in this article. But when I try to send mail, it gets rejected. The error message is: The original message was ...
l4rmbr's user avatar
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2 answers
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Does SendMail cache DNS records? If so, how can this be flushed and what logic does it use?

CentOS 5.x | SendMail I have a SendMail server configured to smarthost to a FQDN (for the purpose of discussion, let's call it group.example.com). group.example.com originally had two A records ...
Mike B's user avatar
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1k views

Sendmail refuses to send email after daemon is turned off

OS: Ubuntu 10.04 Program: Sendmail I disabled daemon by setting daemon_mode = "None", queue_mode = "Daemon" in the sendmail.conf, updated the conf and restarted sendmail. However, after that ...
Xavier_Ex's user avatar
  • 159
2 votes
1 answer
2k views

Prevent mail server (sendmail) used to backscatter

Hi I recently got an email from Amazon, saying that my EC2 instance is sending spam. So what they say is my mail server is receiving email for a non-existing user and therefore bounces the email back ...
Xavier_Ex's user avatar
  • 159
1 vote
1 answer
2k views

change Message-ID in sendmail

We have determined that a piece of external software generates emails with the same Message-ID field. This software uses sendmail to perform the actual sending. Since it is not very easy for us to ...
chahuistle's user avatar
0 votes
1 answer
195 views

sendmail injection

I have a server running sendmail. It started sending out tons of spam. I went it, shutdown sendmail cleaned out the queue (removed everything in /var/spool/mqueue). How-ever, as soon as I restart ...
Kevin's user avatar
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2 answers
170 views

How do I block most emails from being sent to a specific email address (unless they're on a whitelist)

CentOS 5.x | SendMail I want to block most emails going to a specific sendmail mailbox unless they are on an approved "whitelist". Is this possible to do in sendmail?
Mike B's user avatar
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2 answers
2k views

Mails are not receiving in Squirrelmail?

I have installed the sendmail in ubuntu along with Squirrelmail. Mails are not receiving in Squirrelmail, But I can access the received mail using mail utility. What should I do regarding this ?
Mughil's user avatar
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1 vote
1 answer
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can't send mail with exim4 and php

i'm using debian & apache. if i install sendmail, the php mail() function works perfectly. but else i install exim4, the php mail() function does nothing. i have changed the php.ini editing the ...
felix46r's user avatar
  • 261
-1 votes
2 answers
1k views

Sendmail configuration on Linux

I'm running a perl script which wil create weekly report in CSV format. I want this report be emailed to the manager. hence I am trying to configure Sendmail on my RHEL 5.6 server so that I can ...
slayedbylucifer's user avatar
1 vote
1 answer
783 views

How does “sendmail” send mails to any domain name?

I noticed that one of our servers (running Ubuntu) can send mails to any domain (yahoo.com ,gmail.com) using simple "sendmail" command. But I cannot figure out how to configure similar setup in a new ...
Ashika Umanga Umagiliya's user avatar
6 votes
1 answer
9k views

How to disable reverse DNS in Sendmail

I would like to disable reverse DNS lookups in Sendmail. We have an SMTP relay, running Sendmail, with an IP-based access.db. We have no requirement for reverse lookups and, in fact, they may be ...
theirpuppet's user avatar
0 votes
1 answer
4k views

php mail and sendmail hangs

I'm trying to send mail via PHP's mail() function, but it hangs the script. I tried using sendmail on command line (CentOS 5.8) as was suggested in many posts I've read but it also hangs. This is what ...
MeLight's user avatar
  • 131
0 votes
3 answers
2k views

Sendmail Errors when Sending via PHP

I'm trying to setup a new help desk program (Kayako), but I'm having problems relaying the mail to our mail server. Here's the error I'm getting: sendmail[2371]: NOQUEUE: SYSERR(apache): can not ...
tacotuesday's user avatar
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1 vote
3 answers
2k views

451 Temporary local - PHP Mailer

I am using phpmailer to do may emailing in the website, using SMTP auth. However recently i noticed that i gives me a error, SMTP Error: The following recipients failed: [email protected] Then i turned ...
mahen3d's user avatar
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0 votes
1 answer
695 views

Duplicate key error when updating virtusertable.db in sendmail

In my virtusertable I have the following entry: @fax.mydomain.com mail2fax.sh Now I also want to forward all the inbound mail to another external domain while keeping my current setup, so I did this ...
drcelus's user avatar
  • 1,254
2 votes
2 answers
161 views

Centos with Sendmail

I installed CentOS that I use as a webserver (Apache) and I also have the sendmail running on it. I didn't change any configuration in my sendmail. It's currently set to the default settings. I can ...
edotan's user avatar
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0 votes
2 answers
6k views

Email is not sending when the script is running by CRON

I wrote the simple backup bash script and at the end of it, it's sending an email to me that backup is ready. Everything works perfect when I run this script from terminal (root), but when the script ...
badam's user avatar
  • 101
4 votes
2 answers
9k views

Sendmail doesn't work with iptables, even though smtp and dns are allowed

I have sendmail installed on Ubuntu 10.04 solely for the use of the php mail() function. This works fine unless iptables is running (I've been using sendmail [email protected] to test this). ...
Tom's user avatar
  • 143
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4 answers
4k views

how to block spammer using my mailserver

how to defend my mailserver using by spammer to send email to etc yahoomail , gmail , etc my mail server now blocked by gmail. already setting to block of all that but still attacked by spammers ...
fike's user avatar
  • 31
1 vote
1 answer
212 views

What would cause my SendMail server not to acknowledge receiving a TCP Sequence?

My TCP/IP Stack knowledge is a little rusty so please bear with me.... I have a CentOS 5.7 server with SendMail and am having seeing intermittent timeout issues sending email (particularly larger ...
Mike B's user avatar
  • 12k
0 votes
1 answer
455 views

Sendmail uninstallation issues

Something went wrong with my sendmail installation so I uninstalled it with --purge. I still see the /etc/init.d/sendmail script and /etc/mail is full of sendmail files (.db, aliases, etc). Is there ...
Rodrigo Asensio's user avatar
1 vote
1 answer
1k views

using gmail as email relay for sendmail

I used to be able to send emails using a gmail account & sendmail configured using one of the guides on the Internet, for example: http://appgirl.net/blog/configuring-sendmail-to-relay-through-...
0x4B1D's user avatar
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