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

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3answers
39 views

Is it possible to disable SSLv3 in Sendmail 8.14.3?

Is it possible to disable SSLv3 in Sendmail 8.14.3? The recommendations that I found is to use -O ServerSSLOptions=... but that option is not recognized. Is there any other way of disabling SSLv3 ...
0
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1answer
12 views

Sending outgoing mail from multiple e-mail accounts (of different domains hosted on the same server) using sSMTP

I'm hosting multiple domains in my public html folder of an ubuntu-nginx vps server. And I currently have my 'ssmtp.conf' file set up successfully to send outgoing mail(contact, registration, ...
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1answer
49 views

Sendmail (or postfix or somebody) not speaking SMTP

I've got a Linode Debian server which tries to send email (normally through PHP, but mail from the command line doesn't work either). But the mail never arrives successfully. My two clues from people ...
0
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1answer
24 views

Which Exchange 2013 Role will allow mail relay

We have a service that connects to our default receive connector in exchange, which relays the message to external users. Currently I have configured the service to use my DA account which assigned ...
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0answers
19 views

Google mark my mail from my Sendmail on VPS as spam [duplicate]

I would like to ask you to check my message headers. I'm sending it from CakePHP mail library (it's mail() indeed). I just configure SPF and many email servers (for example yahoo.com and many polish) ...
0
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0answers
15 views

Virus sends mails via sendmail [duplicate]

I noticed that my server has some bad software that sends mails via sendmail which couses a very slow working. I scaned server with clamscan but without effect. Is there any way to find out which ...
4
votes
1answer
168 views

Sendmail - Is it secure, and really essential?

I have a web application server running Ubuntu. The Application is built in Python/Django, but does not have any specific use cases to send email. We have log management software that allows us to ...
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votes
1answer
15 views

m4 sendmail.mc command fails no error

I'm trying to make some changes to my configuration file in sendmail using this command: m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf The problem is, it's not working, or at least I'm pretty ...
4
votes
1answer
75 views

Sendmail messages rejected from Microsoft when using TLS

I'm going to preface this with a statement that I am no expert in sendmail. I rarely use it, but in this situation I have to for my client. Background: A client of mine has a mail server running ...
3
votes
3answers
112 views

Sendmail and nslookup resolution problems

On my Ubuntu server I've been trying to get the PHP mail() function to work by installing sendmail (I also have postfix installed but I gave up on it). However, when I try to send mail it gets queued ...
0
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1answer
51 views

Sending mail from AWS

I was hosting my domain on another server and also using the email of a 3rd party service. I just moved my domain to AWS and it works well now (DNS propogation etc.) I also changed the MX Records ...
1
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0answers
41 views

Why is sendmail not relaying some email to Exchange?

On my network I have an Internet facing CentOS 6.5 server running sendmail. It receives email from my Sonicwall router running the full gambit of gateway spam and IPS services. It then relays ...
0
votes
1answer
47 views

What is X-DKIM header for?

There are some emails with an X-DKIM header (next to DKIM-Signature) like this: X-DKIM: Sendmail DKIM Filter v2.8.2 DOMAIN SOMEVALUE However I am unable to find decent documentation for it. What is ...
1
vote
1answer
45 views

Smarthost with two email server backend [closed]

I have a smarthost (sendmail on linux installation) which is serving my lan email server, and it is - obviously - in DMZ. I'm planning to change my lan server in order to migrate to exchange. I would ...
0
votes
0answers
45 views

Sendmail sending as root@localhost

I am reconfiguring sendmail for a client who has a server that runs sendmail and a number of applications that they've developed. The applications send email out by using the sendmail command like ...
0
votes
2answers
44 views

Spam being sent via sendmail on server. How do I trace the source?

Ther eis spam being sent from my server right now and I have no idea where it is originating from. Here is the log entry from one of the emails: Dec 11 20:04:55 ip-10-170-94-31 sendmail[20858]: ...
0
votes
1answer
64 views

Postfix: sendmail (php-cgi) with different IP as authenticated SMTP Users

my Postfix-Mail Server is delivering two main types of mails Mail recieved from php-cgi (sendmail), localhost relay Mail recieved from authenticated SASL SMTP Users Is it possible to define a ...
0
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0answers
51 views

CentOS/sendmail = How to prevent emails from getting “defer” when sent from php mail() function? [duplicate]

I am working on a server running on CentOS (goDaddy VPS). I have WHM setup on it. And I am getting a lot of delays in emails being sent from php's mail() function. I am looking at the Email > Mail ...
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votes
2answers
87 views

Sendmail 12 day delay after Deferred: Connection refused

I have noticed a few emails have a massive delay (up to 12 days) after being deferred "Deferred: Connection refused" Here is an example: Nov 4 09:29:52 server0004 sendmail[4789]: sA49TLmW004726: ...
1
vote
1answer
65 views

Outgoing Spam through hacked Mail Accounts

Already searched some Hours about this Problem - but no good Solution in sight - so maybe someone here can help me on this. We offer Webhosting / Mail Services. Lately the amount of Hacked E-Mail ...
3
votes
0answers
32 views

How can I explicitly disable TLS when sending to one specific recipient?

I have a SendMail 8.14 server deployed in the middle of an SMTP workflow (Outbound mail looks like Exchange -> SendMail -> Appliance -> Internet) I have TLS configured for the first three hosts. ...
1
vote
1answer
35 views

smart host does not deliver email if date header sent?

I use MantisBT 1.2.6 on an Amazon Linux server. It has its own email-sending class layered on top of the PHP mail() function. Actually, it has other options to use smtp or sendmail directly, but I use ...
3
votes
3answers
149 views

Setting up FQDN in sendmail [closed]

In this blog post he suggests echo '127.0.0.1 localhost EXAMPLE.my_domain localhost.localdomain EXAMPLE' >> /etc/hosts but ends the post with But this is a less desirable approach ...
1
vote
1answer
39 views

CentOS - Cant find sendmail config file

I am running CentOS, but can't find the sendmail configuration file. According to these instructions, Common Sendmail Configuration Changes, the config file should be in /etc/mail/sendfile.cf. I ...
4
votes
2answers
198 views

Confused about alias_maps and virtual_alias_maps

I have already re-read the docs on this as well as other posts here and this is still very unclear to me. I have been testing various things to understand the difference between alias_maps and ...
0
votes
1answer
57 views

Multiple domain server, sendmail working erratically

Movie synopsis: I'm managing just a few websites with VestaCP, each website has its own domain and so far it works good. The server is on Linode. I have implemented a very simple contact form in one ...
0
votes
1answer
23 views

Exim need to send mail off server

Never needed to set up a mail server before. I've got exim up and running perfectly fine. When I send an email using command line to my.email@gmail.com it works wonderfully, arrives from ...
0
votes
1answer
49 views

Web form sending email to gmail-hosted domain is not delivering for 1 of 3 clustered web servers

We have 3 AWS-hosted web servers all configured (as far as I can tell) identically. Each server has a copy of a web feedback form that submits to a PHP script that ultimately calls the php mail() ...
0
votes
0answers
18 views

Sendmail avoid bounced mails to be reprocessed

I'm quite new to running my own Linux server and I was just wondering if the following is normal or if my server is being abused by some spambots. So I have a linux server running which has also ...
1
vote
1answer
29 views

Does SendMail Support TLS Certificates With Subject Alternative Names?

CentOS 5.x Does SendMail support TLS certificates with Subject Alternative Names? I have a set of sendmail servers and would like to use the same certificate for all of them (to save time and ...
0
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1answer
38 views

What version of OpenSSL does SendMail use and how is this maintained?

My understanding is that SendMail leverages OpenSSL for STARTTLS functionality (among other things). Does this link dynamically against whatever version of OpenSSL I have installed? Or does sendmail ...
2
votes
2answers
41 views

Why does the sendmail.mc file support entries that are not formatted for m4 syntax?

I recently discovered that /etc/mail/sendmail.mc supports entries that are not in m4 syntax. For example: LOCAL_CONFIG O CipherList=HIGH This doesn't make sense to me because pretty much ...
0
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0answers
119 views

Using Fake Sendmail with PHP

When attempting to send from PHP via sendmail it just hangs. Using IIS sendmail.ini is setup correctly because from command line I can send a test email via the following sendmail -t < ...
1
vote
1answer
93 views

How can I explicitly force SendMail to not use SSLv3 for STARTTLS connections?

SendMail 8.14.x With SSLv3 being sunset (to put it lightly), I'd like to ensure that my SendMail servers aren't using it when establishing STARTTLS connections. Is there a way I can force SendMail to ...
0
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0answers
81 views

What does “version=TLSv1/SSLv3” mean in SendMail STARTTLS log output?

SendMail 8.14.x I have a Sendmail server configured to use TLS and I see TLS log entries like the following: Oct 25 04:04:04 foobox sendmail[1234] STARTTLS=client, relay=[1.1.1.1], version ...
1
vote
1answer
276 views

user smmsp found in repeatedly in auth.log

Running an Ubuntu server that hosts about 10 Wordpress websites Is it normal to find this in my auth log? Oct 26 08:40:01 andre CRON[4737]: pam_unix(cron:session): session opened for user smmsp by ...
0
votes
1answer
22 views

sending e-mails via sendmail using virtual-users

Currently my sendmail send e-mail with following header: Received: (from www-data@localhost) I want this header to be like: Received: (from contact@mydomain) but I am also hosting multiple ...
0
votes
2answers
65 views

Tracing down spam

How can I find the source of out going spam on a linux server? tail -f /var/log/exim_mainlog 2014-10-24 15:02:37 [28750] 1Xhl4A-0007Te-9C Completed QT=7s 2014-10-24 15:02:37 [28746] SMTP ...
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votes
1answer
58 views

Too many sendmail instances in “top” command

I got a server with mysql+php running on it only. Cronned PHP scripts (not available publicly) send occasionally emails, but not more than 10 per hour. However, whenever I type "top" in bash I see ...
1
vote
2answers
48 views

Configure sendmail to send emails as 'example.com', but relay actual emails to 'example.com' to another server

A cloud-based server set-up by a 3rd party is using sendmail to do email sending. Now, the sendmail has been configured so that emails from www-data@localhost [1] is sent as www-data@example.com. The ...
2
votes
1answer
71 views

Mail has stopped working on Centos since instlling MailScanner

I have a VPS which I rent and it is running Centos 6. The VPS has ZPanel installed which is used to host some websites and emails. I have just installed Mailscanner and now, I have noticed that ...
0
votes
1answer
48 views

Sendmail set domain in From field

I am using a Hetzner root server running Debian 7. My IP address is 148.251.181.168. My hosts file has the domain name immediately after 127.0.0.1, which was suggested as a solution elsewhere. ...
1
vote
1answer
32 views

wildcard certificates for linux mail servers

I would like to publish non-self-signed SSL certificates for some linux mail servers, which operate SSL and/or TLS mail services. (If relevant, these are dovecot+sendmail servers.) I need to cover ...
0
votes
0answers
48 views

mail loops back to me - sendmail error MX

One of my mail server 122.111.123.123(fake IP) has issues with sendmail error: Oct 15 08:45:28 s10 sendmail[27893]: s9ELjO6n027893: from=<mprss@fincautrera.com>, size=1112, class=0, nrcpts=4, ...
0
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1answer
222 views

sendmail fails to send to specifc domains with “stat User unknown”

First of all, I searched a lot and the closest scenario found is sendmail doesn't send email to specific domain email address, tried to use the proposed solutions but none of them worked for me. ...
2
votes
2answers
96 views

Mail not delivered from custom email server (MS Exchange)

I have my own Exchange Server 2013 (SP1). I am able to receive emails ok but sending emails is not reliable. Emails sent to gmail or seznam.cz (email provider in Czech Republic) is ok. The problem is ...
0
votes
3answers
3k views

how to fix “send-mail: Authorization failed 534 5.7.14 ”

I am trying to create e-mail alert on ssh root login so I had to install ssmtp and mail utility. Then I configured ssmtp.conf file as follows : # Config file for sSMTP sendmail # The person who gets ...
2
votes
1answer
88 views

sendmail foward local mail to relay host

I have read up a lot on the subject but sadly cant get it to work. I have a Centos 6.3 with sendmail installed. The box gets used as a BackupPC server and maybe a samba server later. I want to ...
0
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0answers
46 views

Sending mails from a contact form to a mail adress of the same domain but the mailserver is not the same like the hosting server

I have a website example.com/contact with a contact form hosted on one server. For the emails info@example.com I use an other server. In the settings for the domain I redirected the A-entry for the ...
0
votes
2answers
370 views

What mailer does cron use to send mail?

I am trying to debug an issue with cron not sending mail on a Centos 6 box that I did not configure. How can I determine which mailer cron is using to send mail? The crontab man page has this to say, ...