Tagged Questions

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

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1
vote
0answers
11 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
18 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
80 views

Setting up FQDN in sendmail [on hold]

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
23 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 ...
-3
votes
0answers
29 views

Email bounces with spam message [closed]

Each time I'm sending an email, it bounced back with this message below Your message could not be delivered to one or more recipients. It is attached for your convenience. For further assistance, ...
2
votes
2answers
51 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
28 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
16 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
22 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
11 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
22 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
votes
0answers
14 views

Using PHP mail() with ajenti

I recently installed ajenti-v on my server. I, however, noticed that the php mail() method was not working. So I installed ajenti-v-mail, but that didn't fix the issue either. So I removed that and ...
0
votes
1answer
26 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
25 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
votes
0answers
36 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
63 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
votes
0answers
24 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 ...
0
votes
1answer
29 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
17 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
42 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 ...
-1
votes
0answers
16 views

Sendmail quit working after configuring private static IP [duplicate]

I'm pretty new at this whole gig of running a server without WHM so bear with me please. I just followed directions to enable a static ip configuration on my Linode Centos 7 for the purpose of using ...
-1
votes
1answer
32 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
34 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
46 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
29 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
23 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
31 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
votes
1answer
82 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
75 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 ...
-1
votes
2answers
481 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
52 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
votes
0answers
33 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
98 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, ...
2
votes
2answers
461 views

Send mail from Docker container with host's Postfix

I am running an Ubuntu 14.04 (Linux) server. I have installed and configured Postfix and OpenDKIM very nicely on the server; I can send emails to myself with commands such as echo hi | sendmail root, ...
0
votes
1answer
25 views

How do I handle the server hostname with multiple web sub-domains and email? [closed]

A while back, I set up a server using nginx for a web site, example1.com, along with email using sendmail and all went well. Recently, I set up a second web site, example2.com, along with email in the ...
0
votes
1answer
75 views

Sendmail proper configuration

I have a small server (Ubuntu 14.04) for multiple websites. One of these websites needs to send emails to the user on various actions (registration, password recovery, etc.). I have sendmail installed ...
0
votes
0answers
32 views

Mail to localhost user doesn't work after installing sendmail

I want to send emails to other domains from my virtual Debian server, so I've installed sendmail-bin and sendmail. Since then mailing to gmail adresses works, but mailing to users in localhost mail -s ...
1
vote
2answers
48 views

Make all users 'trusted' in sendmail

Is there a way to make all system users be 'trusted' by sendmail without having to manually add all the usernames to /etc/mail/trusted-users? Or even better, can I instead of defining 'trusted ...
-1
votes
1answer
39 views

Sendmail emails going to spam [duplicate]

I have sendmail installed on CentOS 6 and whenever I try to send an email, it goes to spam on the recipient. (Gmail in this case) OK, so, the domain I was to send mail on behalf of is: scalpello.info ...
0
votes
1answer
80 views

Sendmail's MTA, MDA and SMTP 550 User Unknown forwarded to postmaster

I have two boxes running sendmail and configured as: MTA accepting connections from the outside world (mta.xyz.com) MDA accepting connections from internal network and storing them in user mailboxes ...
0
votes
1answer
80 views

Postfix: use relayhost only when direct delivery not specified

I read up on using relayhost with Postfix 2.6.6. It's possible to use different relay hosts, with different credentials, for different senders. But how do I use direct delivery with specific senders ...
1
vote
0answers
110 views

vCenter Server Appliance email's not reaching smtp server

Email's being generated from my test alarms in vCenter are not being forwarded to the proxy / SMTP server configured. I run tail -f on the mail log file when generating a test alarm and I can see the ...
-1
votes
2answers
202 views

“Connection to host lost” on telnet to port 25 [closed]

i installed smtp4dev to test receive mails in my localserver(xampp) for the registration form here: https://github.com/panique/php-login note: localserver is on port: 8080 my php.ini file for SMTP ...
-1
votes
1answer
42 views

Configure sendmail to reject emails without from addresses

My MTA is receiving lots of emails with no from address specified, for example: Sep 15 17:09:57 mta1 sm-mta[46864]: STARTTLS=server, relay=mx01.aquila-capital.de [83.236.242.254], ...
0
votes
1answer
53 views

Linux: Ignored entries in aliases file

I am trying to configure my RHEL6.5 server to send all emails addressed to root or apache to go to my external email address. I have found many guides on doing this and tried all of the suggestions I ...
1
vote
1answer
972 views

Mails sent to mail.protection.outlook.com are not being received

For few days we have been receiving complaints from many of our subscribed clients that they are not getting daily alert mails. We checked in our logs that the mails are accepted by the servers (MX ...
-7
votes
2answers
82 views

Why use Dovecot AND Postfix/Sendmail? [closed]

Forgive me if I'm missing something obvious here..... but why do most linux server distros come with both Dovecot AND Postfix (or sendmail)? As far as I'm aware all three of them are Mail Transfer ...
0
votes
1answer
76 views

Mail is not sent to specific domain

We are using php mail function to send emails to our customers. Few days ago, we've found that email are not delivered to only hotmail.com domain. I've checked email log to see if there are any error ...
0
votes
1answer
74 views

mail: Cannot parse address

This is the command I use to tar my backup files, write to stdout and then upload everything to Amazon S3 with an email notification. tar -czvf - --exclude-caches /var/www | s3cmd ...
0
votes
1answer
29 views

Why does m4 error “linux-gnu.m4 - No such file or directory” appear the first time after updating sendmail.mc?

SendMail 8.14.x | CentOS 5.x I've noticed that if I manually update /etc/mail/sendmail.mc (for example, enable TLS support), and then bounce sendmail, I get the following error: Shutting down ...