Free and open source mail transfer agent (MTA) that routes and delivers email

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2
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20 views

Can't receive mail with postfix virtual alias

I can't receive mail on the virtual aliases (normal email works in and out), i didn't try the virtual domains but that's what i was going for to get to work. So i have a Debian Wheezy 7.8 Build: ...
2
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51 views

Prevent postfix appending search domain

I have postfix running on OpenBSD, and I'm having trouble with it appending a search domain when none is configured in either postfix or the local DNS server (dnsmasq). My domain has a wildcard CNAME ...
2
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46 views

Spamassassin not respecting my blacklist

I've tried putting my blacklist_from and whitelist_from lines in ~/.spamassassin/user_prefs and in /etc/spamassassin/local.cf, but they appear to be ignored. This is from postfix's master.cf: smtp ...
2
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0answers
356 views

When does Postfix not perform lookups in virtual_alias_maps?

I'm having a real pickle of a problem: I have a Postfix 2.6.6 / CentOS 6 server that's set up to forward mail from specific aliases to specific destinations. This is done through a mysql ...
2
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0answers
128 views

Mail Service requires reboot every few days

I'm kind of new to postfix so am hoping someone can point me up the obvious here I have a Postfix working as SMTP server and everything is fine for a few days. Then without warning or apparent reason ...
2
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0answers
918 views

Rewriting sender address based on the recipient

I'm trying to set up my postfix server to alter the sender address of outgoing e-mails for one specific recipient domain (example.com) -- otherwise I'd just configure smtp_generic_maps in main.cf and ...
2
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0answers
2k views

Postfix: How to configure Postfix with virtual Dovecot mailboxes?

I have configured a Postfix mail server for two domains: domain1.com and domain2.com. In my configuration domain1 has both virtual users with Maildirs and aliases to forward mail to local users (eg. ...
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0answers
16 views

Comparison of methods to send Postfix emails to Procmail

I want to begin using Procmail in order to perform filtering on specific accounts in virtual domains as received by Postfix on my Centos 7 server. In various articles it seems that there are two ...
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37 views

Windows 8.1 Mail Client Sending via Postfix

I have a postfix server setup to accept outgoing mail from STMP authenticated clients. It has been working this way for many years with success for a large number of different e-mail clients. ...
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123 views

Postfix + Saslauthd + Kerberos 5 + CentOS 7 not working

I've almost got saslauthd checking against Kerberos but seeing some last issues on CentOS 7. When postfix talks to saslauthd, it sends a lowercased domain and it's not corrected. I tried to fix things ...
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65 views

Postfix on Linux: easy way of masquerade_exceptions=<all system users>?

... well, the subject says it: in a NULLCLIENT configuration, we want to have all normal users to be masqueraded, but all system users should be exposed. The sysadmins get system user's mails from a ...
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0answers
123 views

POSTFIX: how to determine how many connections are currently active

I'm running postfix on a mail server which is used by a couple hundered users. One user is getting "Connection Interrupted" errors in Outlook when attempting to send. I have not had reports of this ...
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119 views

Postfix mailbox_command + netcat + nodejs

I use Node.js script to process incoming emails and pipe them from Postfix via netcat in mailbox_command (namely: nc 127.0.0.1 3002). Node is listening on port 3002 and calls socket.destroy() once ...
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176 views

Postfix performance and how to increase my throughput?

What I've read so far: Postfix Tunning Postfix Bottle Neck Analisys The Book of Postfix (chapter 22) I have similar specs to this guy but I'm only able to send about ~1300 emails/hour What I've ...
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0answers
210 views

Missing Client IP in postfix Received header

I just noticed my postfix setup has been having a problem for some time now. When receiving (some) mail from German freemail provider web.de, the following headers are found inside the mail postfix ...
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0answers
359 views

postfix opendkim DKIM-Signature and Domainkey-Signature

Running postfix on CentOS 6 as an edge relay for a while now, so all our outgoing mail is routed through one point with opendkim signing the mail. This works great. I was originally using ...
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0answers
194 views

Postfix + Amavisd-new as smtp-proxy (pre-queue) for inbound only, postqueue for outbound?

I am in the planning phase of building a mailserver with the following requirements relevant to my question: Use postfix, virtual users (two virtual domains) Must filter pre-queue to reject ...
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0answers
77 views

Google Apps MX for User Accounts, Custom Postfix for Sending only, same domain

I have a google apps business account which provides the use of gmail's mx servers. I would like to use this for users to send/receive email. However, I have a specific need to send bulk emails on a ...
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0answers
393 views

How to configure Postfix to use multiple IP aliases for sending out email?

Running Postfix on Linux. I know how to create IP aliases. I know how to create multiple smtp transports and bind them to various IPs: smtp_bind_address=X.Y.Z.Q I know how to assign a transport ...
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0answers
194 views

Postfix - SASLAuthentication Problems Cram-MD5 with StartTLS

Recently I configured my mail server which uses Postfix and Courier. Everything works except for the authentication when sending mail via my Postfix server(running on port 587) which has StartTLS ...
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0answers
62 views

Forward copy of mail to different domain

Is it possible in post-fix to forward an Mail send from particular user From: abc@example.com TO:anyuser@ourcompany.com should forward copy of email to other user at external domain ...
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0answers
223 views

postfix, dovecot, dovecot-sasl, ldap, and static UIDs for NFS-shared email storage

I'm trying to build a Ubuntu 12.04 mail server as such. Must: Auth against an existing Open-LDAP server. Storage in Maildirs on an existing NFS server, everything owned by 8:8 (mail:mail). Auth is ...
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218 views

Fetch all Mail from an IMAP server with Postfix to distribute on local IMAP server

The situation: The constellation: We have a managed, dedicated server from a professional provider. We currently have Tobit David.fx server in use within our local network which fetches all E-Mails ...
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0answers
89 views

Check Exchange Quota Usage from Postfix / Prevent Backscatter With Postfix+Exchange

we have some troubles with our Mailsystems at the moment. We have an postfix server, handling all incoming mails and forward them to the correct internal mailsystem. This works well with the most unix ...
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672 views

Postfix sasl relay host - weird behaviour

Previously I had a relayhost set in postfix to mailhost.zen.co.uk - I don't think it accepts SASL - only TLS. So I though I would try changing to a different relay host. However, the following log ...
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11 views

Mailserver creating mail accounts upon “User unknown in virtual mailbox table” on local delivery

I'm running an older Postfix and Courier mailserver with virtual domains. I recently experienced that local delivery (using webmail) to a not existing mailbox would result in that actual mailbox to be ...
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0answers
18 views

Postfix catch-all email, save to combined file

We're running a spam trap / honeypot, and by using the amazing guidance of the members here, I've been able to configure our Ubuntu server running Postfix 2.11.0 to catch all inbound email, regardless ...
0
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0answers
31 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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0answers
17 views

How to fix Postfix init script on Ubuntu 14 so it can stop the Postfix it started

I'm on Ubuntu 14 Installed via sudo apt-get install postfix service postfix start works fine and even does something useful But: $ service postfix restart * Stopping Postfix Mail Transport Agent ...
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26 views

Postfix email address display name?

I'm able to send email as support <support@example.com> how can I configure it to send as "Example Support" <support@example.com>? /etc/postfix/main.cf ... myhostname = example.com ... ...
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20 views

Sympa suddenly changed the domain of all lists

we have on our server sympa with postfix installed. Everything was working fine for about 6 months. On our server were about 100 lists with the format listname@foobar.de Since yesterday the format of ...
0
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0answers
24 views

postfix does not accept SASL logins though enabled

Whenever I connect to postfix smtp using these credentials: tls://smtp.example.com:587 I get this error printed in the maillog: SASL LOGIN authentication failed: encryption needed to use mechanism ...
0
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0answers
40 views

opendkim-testkey: keys do not match

How do you produce the 'default._domainkey.drpedroazevedo.com' file? I deleted mine because my key expired and opendkim-keygen did not produce a new one as expected. mlr01 keys # ...
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0answers
69 views

postfix always_BCC mail system configuration error

I'm trying to setup always_bcc to an archive account in order to copy all inbound and outbound mail into a mailbox that can be sucked up by a third-party cloud archive solution. Outbound, works fine, ...
0
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0answers
70 views

How to integrate spamassassin to work with squirrelmail?

I have recently configured, postfix/dovecot/squirrelmail and installed AMAVIS, CLAMAV, SPAMASSASSIN .Im trying to check spam system is working by sending a plain text email with the following string ...
0
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0answers
73 views

Postfix server rejecting sender address

I installed a mailserver (postfix / dovecot) on my Debian Wheezy system and cannot send mails. Since I just want to administer a mail server and don't have a domain yet, I'm working with the external ...
0
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0answers
62 views

how to route all php script emails through postfix

I have a plesk server with 1000 domains. customers send lot of spam from scripts, which i cannot block. so i want to route their php scripts or all emails from every scripts, to be passed/routed ...
0
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0answers
173 views

Create Public/Shared Mailbox on OS X Server 10.9.5 with Dovecot 2.2.5

how can I create a Public/Shared Mailbox on OS X Server? This Mailbox should be available to all authenticated Users on my network and should be automatically subscribed into a folder "Public" in the ...
0
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0answers
56 views

how to enable dovecot virtual mysql virtual users authentication together with system users authentication

I use postfix,dovecot and mysql installed my mail server on centos. It works fine for mysql virtual users but the system users can not be found for authentication. How can i let it if it can’t find ...
0
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0answers
36 views

How to make postfix to deliver via a command

I have setup a postfix server that will receive several emails and deliver them to OpenERP. It's currently working, but I would like to improve the overall schema so that postfix delivers (i.e ...
0
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0answers
224 views

How to exempt localhost from SMTP smart relay?

I've got a mail server (mail.mydomain.com) that has a relay set up as such: /etc/postfix/main.cf: # Smarthost relayhost = [smtpcorp.com]:2525 smtp_sasl_password_maps = ...
0
votes
0answers
71 views

emails are coming from localhost instead of php sendmail_from

I'm trying to understand what I'm missing here. I have following PHP script: <?php ini_set('sendmail_from','XXX@XXX.TLD'); mail('YYY@YYY.TLD',rand(),rand()); ?> ... and even though I set ...
0
votes
0answers
65 views

Postfix+DKIM using Amazon's second private IP address

I use Amazon EC2 with 2 private IPs. I have 2 postfix instances (using multi-instance builtin support) with opendkim. Each instance works when I send email (over telnet) using the primary private IP ...
0
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0answers
119 views

Postfix, schedule batches of email to be sent

Is it possible to have postfix limit the amount of emails it sends at once and when there is larger than x email, send them out in timed batches (wait 5 minutes, send another 50, something like that)? ...
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0answers
139 views

Collectd / Tail Plugin for Postfix shows Incorrect Numbers

I am using collectd 5.4.0 with CGP 0.4.1 on a freshly installed Ubuntu 14.04 LTS. All default settings work as expected and charts are being generated. To track Mails being sent from the Server, in ...
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129 views

maildrop and quota exceeded

I implemented warning maildrop when quota exceeded. This worked correctly except for one detail. The drawback is that sending mail notice is sent only time... I mean for example if the mailbox has ...
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0answers
82 views

postfix smarthost mixed with usage of external mailserver

In a SOHO setup I've got a mailserver with fetchmail, dovecot, roundcube and postfix running. Fetchmail fetches the mails from the isp, postfix and dovecot handle the rest. Postifx sends emails in a ...
0
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0answers
651 views

Diagnose SASL LOGIN authentication failure with postfix and sasldb

I am trying to configure a Postfix SMTP server on my personal machine (ubuntu server) using sasldb2. So far what I have set up works well with the test command: testsaslauthd (however it may be ...
0
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0answers
20 views

Is there finer rate control for Postfix, e.g. 2/second?

I have managed to tune down postfix sending to one every second or one every five seconds. There's also an option to send only two or three concurrently. Is there any way to send two every second or ...
0
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0answers
188 views

postfix master dead but subsys locked but working

postfix master dead but subsys locked I tried removing the files on /var/lock/subsys/ and restarted postfix, no error on logs and mail is working but when I check the postfix status it still says ...