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

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0
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3answers
20 views

Uninstalling a package from Ubuntu (sendmail-base) issue

I am trying to uninstall sendmail-base package but failed. Is there any way to remove this? root@server:~# apt-get remove --purge sendmail-base Reading package lists... Done Building dependency ...
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votes
2answers
29 views

Getting started with mail servers [closed]

Can anyone point me to any good resources for starting out with hosting mail servers? I believe I've gotten a fairly good grip on web servers and now I'm trying to host a mail server for the purpose ...
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votes
1answer
53 views

Best Practice for Partitioning CentOS as a Mail Server? [closed]

I've got 8X HP900GB 6G SAS 10K SFF on a HP ProLiant DL380p , i am trying to find best practice to partition it's disk space for a mail server which will expand , while i've got so much i/o processes ...
-1
votes
1answer
32 views

ERROR: Message not sent. Server replied: 354

Hello I have strange problem. On webmail every user gets error "ERROR: Message not sent. Server replied: 354" while sending mails. But mails are sent properly and reaches properly. Can you tell me ...
-1
votes
1answer
33 views

Send email from linux server through remote linux smtp server using PHP [closed]

Here's my setup Ubuntu Database server that runs scripts that need to be able to send emails Ubuntu Web Server that has sendmail setup on it that used to run scripts that send emails Is what I need ...
2
votes
2answers
36 views

sendmail.cf to read server name from another file?

I need to provide the name of a relay server to my sendmail configuration file. This server name is however configurable via another system/application. In case of a change, i need to change the ...
0
votes
1answer
25 views

sendmail working for some emails

I use PHP to send email which uses sendmail. I noticed that some emails are not being delivered with the below errors in /var/log/maillog Example 1 stat=Unknown Sender Example 2 stat=Deferred: 450 ...
0
votes
1answer
25 views

Linux mail command not working like it used to

I was using the following mail command in my crontab to which worked flawlessly until we re installed our mail server last Friday: echo "Testing 123" | mail -s "ECS PostDate Processed" ...
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0answers
22 views

How to debug sendmail rule TLS_Srv and TLS_Rcpt [closed]

There are some rules which i would like to debug on my local setup. TLS_Srv and TLS_Rcpt. Am trying to verify if my server CI string is matching properly with the CI string in the TLS_Rcpt in access ...
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0answers
32 views

Sendmail Server Authentication: Certificate based: Error

I have configured my setup for a server certificate based authentication. Both Server and Client are sendmail systems and both have the same set of certificates. However when client communicated ...
0
votes
1answer
30 views

dsn=5.6.0, stat=Data format error when forwarding e-mail

Our Linux host (CentOS) has several shared domains, one of which is example.com (fake host and user names used throughout this message); We use /etc/mail/virtusertable to have all mail to example.com ...
2
votes
3answers
39 views

when use . after myhost.mydomain in config files?

I noticed sometimes '.' can be seen at the end of myhost.mydomain so it is myhost.mydomain. ^^^ statement. Where should I use this '.' at the end? Currently in etc/hosts I ...
-1
votes
1answer
24 views

after changing hostname to FQDN router doesn't list my host? [closed]

my solution to sendmail errors in log: May 9 19:08:54 myhost sm-mta[17103]: unable to qualify my own domain name (myhost) -- using short name was to set hostname from myhost , to FQDN: ...
1
vote
3answers
85 views

unable to qualify my own domain name (myhost) — using short name [closed]

and yes, I have 127.0.0.1 localhost myhost.mydomain.eu myhost.domain2.eu localhost.localdomain 127.0.1.1 myhost in hosts file. What is wrong? Sendmail started to put this error into log. ...
1
vote
2answers
27 views

Should I change the Envelope From for Sendmail

Currently the Envelope from is [email protected]. All emails sent from this website use the From address of [email protected]. Should I change the Envelope send address to match the From ...
0
votes
1answer
32 views

Change the sender email of logwatch on RH Linux

Im running logwatch on red hat 7 it sends mails using [email protected] however, the email from localhost.localdomain is not received at the recipient because localhost.localdomain is not ...
0
votes
2answers
50 views

Email not being relayed from EC2 Amazon Linux Instance

I'm trying to send email from my EC2 instance. Regardless of the target email address the SMTP service logs show that the email is sent but it never turns up on the remote server. I've done a ...
0
votes
0answers
16 views

What is smarthost in sendmail [duplicate]

Can someone explain me what exactly is a Smart Host wrt sendmail configuration? Would be helpful if someone can give a deployment scenario also for proper understanding. Smart Host and mail relay ...
1
vote
1answer
51 views

sendmail (Smart Host) authentication with server using certificates

We are trying to prepare a setup with following configuration: We have a Central mail server which acts as a gateway to the internet for our domain. We have some client machines which access ...
1
vote
0answers
33 views

Sendmail Backscatter

I am looking for any advice on how I can stop back scatter on my sendmail servers. I have looked at the privacy flags and setting a non delivery for anything. I don't think this is a good approach. ...
1
vote
1answer
66 views

What are steps to clear sendmail queue without rebooting?

Begin Note I believe this is a similar but not duplicate question to another server fault question, because the bounced message is to a legitimate email address that I can send ...
-1
votes
1answer
28 views

PHP mail(); not working, How to install mail server [closed]

I was unable to send an email using PHP mail sending function. I just came to know there is no mailserver running in my Linux server and I tried to install one using "yum install sendmail" in ssh. But ...
0
votes
1answer
43 views

How does SendMail decide which connections are cached?

CentOS 5.x | SendMail 8.14.4 I'm trying to wrap my mind around how Connection Caching works in Sendmail. I'm experiencing some connection issues with some remote mail hosts that we communicate with ...
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votes
0answers
27 views

Unstable work of SMTP [closed]

I have VPS with a few websites. All services are stable on the server. But look at the smtp What it works so unstable? CentOS 6, sendmail UPD1 I'm using monitor.us for external monitoring of the ...
0
votes
0answers
42 views

How can I throttle incoming emails in SendMail for a specific recipient?

CentOS 6.3 | SendMail 8.14.4 I'd like to throttle inbound emails to a specific address via sendmail. Is that possible? Ideally I'm looking for the opposite of greylisting: Accept the first email from ...
1
vote
1answer
78 views

mail received at sendmail has relay=localhost [[UNIX: localhost]] causing check_rcpt to say Relaying denied

I have setup my local sendmail as a Smart Host and trying to relay all incoming mails to a mail server. However, whenever i try to send a mail to an internet mail address, getting the following ...
0
votes
1answer
23 views

Does running sendmail commands from the command-line affect the stability/uptime of the sendmail daemon?

CentOS 5.9 | SendMail 8.14.4 Pardon my ignorance but I'm compelled to ask: Does running separate sendmail commands from the command-line (e.g. sendmail -d##.# -qRfoo.com) affect the stability/uptime ...
2
votes
1answer
32 views

Where/how can I find a complete list of debug flags for sendmail 8.14.4?

CentOS 5.9 | SendMail 8.14.4 I recently learned about debug flags in sendmail and would like to keep a list of them for my specific version (8.14.4). I understand that these debug flags change/grow ...
1
vote
0answers
54 views

How can I confirm what specific MX priorities SendMail saw when delivering a message?

CentOS 5.x | SendMail 8.14 I've got a sendmail server that is configured to be the last hop out. It performs DNS lookup for outbound messages and attempts to deliver them to the recipient mail host. ...
0
votes
1answer
43 views

Configuring Sendmail to report successful deliveries

I now have Sendmail report the fail deliveries by bouncing back to a bounce mailbox. E.g. failure to reach [email protected] would bounce back to [email protected]. I was wondering if ...
-1
votes
1answer
44 views

Sendmail mqueue deferred (list.dsbl.org) [closed]

Hi I have a issue with a mailserver configured with sendmail. In mailq I have many entrys with: (dnsbl map: lookup (254.0.168.192.list.dsbl.org.): deferred) Thanks.
1
vote
4answers
173 views

How I (simply) Forward All Incoming Email to an External Address (ie. Gmail)?

With Google Apps no longer being free for small businesses/teams, I'm left pointing my MX records at my application server. I'd still like to receive email at a Gmail address sent to the domain ...
0
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0answers
52 views

sm-mta strange outgoing messages

I noticed something weird today on my mail server. I had a message in my inbox that said: Received: from myserver.com (localhost) by myserver.com (8.14.3/8.14.3/Debian-9.2ubuntu1) id ...
0
votes
1answer
39 views

sendmail on ubuntu not working correctly

I am in the process of setting up a new server which runs Ubuntu on a LAMP stack. I have installed sendmail but it doesnt seem to work. This is my output in the error log: Apr 16 13:46:51 ...
1
vote
1answer
59 views

iptables - sendmail send out only

I have had a look around and tried a number of things. If I want a (centos) server to only be able to send emails (notifications to me) but have no other internet access in or out then what are the ...
0
votes
1answer
69 views

Getting error when Send mail to other public/private mail server with same email account name?

I have a private mail server in our organization like mail.domain1.com. Let's say I have mail id of [email protected]. But when I send mail using the same local part with different domain like this: ...
0
votes
1answer
72 views

Sendmail chdir(/clientmqueue) permission denied

Some of my php mail forms have stopped working. # tail /var/log/maillog says sendmail[18010]: NOQUEUE: SYSERR(nginx): can not chdir(/var/spool/clientmqueue/): Permission denied The owner of ...
0
votes
1answer
66 views

Why sendmail is accepting mails for hostname not present in local-host-names file?

I have following line in my cf file Fw/etc/mail/local-host-names and following lines in local-host-names file mydomain.com hostname.mydomain.com but when I send mail to ...
0
votes
1answer
182 views

PHP mail function not working - sendmail to blame?

All of a sudden it appears as though we can no longer send E-Mail by using the mail function in PHP. After doing some investigation through looking at other threads in ServerFault and on various other ...
1
vote
1answer
27 views

What conditions determine the uniqueness of a SendMail QID?

CentOS | Sendmail On occasion I've noticed that completely separate messages going through a common SendMail server may have very similar SendMail QIDs. For example one message may have a QID of ...
0
votes
3answers
77 views

Sendmail wont send to same domain

I'm using sendmail on my webserver, which so far is working fine. However, when I send emails to the same domain I'm sending them from, they never get delivered. I temporarily changed the email ...
2
votes
1answer
71 views

How to read HUGE clientmqueue in human format?

Clientmqueue is over 18GB and ls /var/spool/clientmqueue is working 5 min already. I want to see what mail is in the queue. Maybe i can read some in human format? To see date title who send it and ...
1
vote
1answer
57 views

How can I defer delivery of an email message with exim?

I have previously used sendmail from the command line to send a large number of messages and used the -odd flag to defer delivery so that the program puts the emails into the queue quickly and returns ...
0
votes
1answer
179 views

Sendmail Spamming Recipient

I am using a perl script to send daily status to my gmail account. For some reason, sendmail seems to be spamming gmail although I am only sending one email Gmail is complaining about a failed ...
0
votes
1answer
99 views

Port 25 blocked but Firewall is off [duplicate]

OK so this is driving me crazy. Running sendmail on CentOS. It's running, and listening on 25: [root@mysqlslavebackup ~]# nmap -sS -O -sV 127.0.0.1 Starting Nmap 4.11 ( ...
0
votes
1answer
44 views

Email host rewritten by sendmail/postfix

I have a Postfix mail server running, and I'm trying to understand why emails sent to [email protected] are actually sent to [email protected] instead. On the command line, I send a ...
-1
votes
2answers
54 views

Reduce disk writes in sendmail system

I am using sendmail in a farm of ~10 servers processing 200-500 messages a minute. I have found that after moving to a virtual environment, my largest bottleneck is disk write, and specifically the ...
1
vote
2answers
64 views

Creating a mailbox for sendmail using adduser / mailboxes without system user accounts

I want to create some mailboxes for Sendmail and I am going to do it with the adduser system utility, so every mailbox will be a user in the system. How do I restrict the privileges of these accounts ...
2
votes
3answers
423 views

Ubuntu sendmail “Relaying denied. Ip name possibly forged” (in reply to rcpt to command)

When I try to send an email (from a different server) to a local account on my server I get the following error: Relaying denied. IP name possibly forged [W.X.Y.Z] Here's what I do: ...
0
votes
1answer
66 views

Sendmail Modifies Recipient Address from DNS Lookup

CentOS 5.8 box (Unitrends Appliance) with stock Sendmail sendmail-8.13.8-8.1.el5_7. If we email to normal addresses from the box (we have two boxes both doing the same thing) everything is fine. If ...

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