Tagged Questions

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

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0
votes
0answers
9 views

How to configure postfix to send from domain emails to another server?

I have a Debian dedicated server at XX.XX.XX.XX accessible from site-exemple.com. The MX record for site-exemple.com is mail.site-exemple.com. It resolves to another ip (a vps). I have a wordpress ...
2
votes
1answer
14 views

Postfix - virtual - exclude sender from recipients

Is postfix able to rewrite the recipients, based on the sender address? There are multiple users receiving Mail by this configuration in /etc/postfix/virtual: mail@example.com user1, user2, ...
-2
votes
0answers
25 views

How do I setup “send mail as” in gmail if I am forwarding with postfix? [on hold]

john@foobar.com writes to info@mydomain.com postfix forwards the email to mydomain@gmail.com Until here, its working. Now I want to reply as info@mydomain.com from the gmail client, I need to fill ...
-1
votes
1answer
22 views

BATV filtering on Postfix and mailman

Apparently Postfix does not natively support BATV tags. We'd like to strip these prvs=-tags from the FROM field because we think our mailman setup has issues with it (sees sender as a non-member). I ...
3
votes
1answer
257 views

Does closed Port 25 cause mail to be marked as spam?

I have a web server where I have installed Postfix for sending emails only. All incoming mails will be handled by google apps and not my web server. Using iptables rules, I have blocked all incoming ...
1
vote
2answers
19 views

Postfix login mismatch sender address rejected

I'm getting the following rather annoying error message: Sender address rejected: not owned by user subscription@****.ca; from=<subscription@****.ca> to=<webmaster@****.ca> proto=ESMTP ...
-1
votes
2answers
36 views

postfix problems with pattern in virtual file

We are trying to forward all emails to a specific email address. I think everything is set up okay, such as 'main.cf' and 'virtual-regexp' files. If we put the following in the 'virtual' file, the ...
1
vote
1answer
21 views

Postfix - Allow delivery for my domain but block mail to root@localhost for all but local system

I use Postfix as an MTA to receive mail for my domain. Recently I've started to get some mails coming in to root@localhost from external IPs trying to exploit bash. My bash is patched so I should be ...
-2
votes
0answers
18 views

Postfix doesn't deliver any mails anymore?

I've been using postfix for years now and all of a sudden (no update, no config change or whatsoever) I don't get any emails anymore. This is the log output when I send an email to the affected email ...
-1
votes
0answers
25 views

Can I configure incoming and outgoing policies separately in postfix

Can I configure incoming and outgoing policies separately in postfix. Example - Create a Transport_map only for outgoing mails.
1
vote
1answer
20 views

Milter service needs transport:endpoint instead of “/var/run/opendkim/opendkim.sock”

I have set postfix with milter based on this tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-dkim-with-postfix-on-debian-wheezy But then posptfix reported that ...
1
vote
1answer
39 views

Relase outgoing mails to internet if local delivery failes

How can I release outgoing mail to the internet if local delivery fails in postfix? My server has virtual domains configured with mydomain.tld. When I send an email to somename@mydomain.tld it try to ...
1
vote
1answer
31 views

Postfix SMTP server gets “550 Requested mail action not taken: Invalid IP”

I have a SMTP server named smtp-ca.mdpi.com and when sending emails to some specific chinese email domains, I am getting back: 550 Requested mail action not taken: Invalid IP<64.15.147.140> (in ...
2
votes
0answers
35 views

Debian Wheezy/Postfix: “whois” email alias not working when others will?

I've hit a really irritating issue. I'm trying to add a "whois" email alias to /etc/aliases for my whois contact information, but the alias bounces email every single time. I added a "blort" alias ...
0
votes
1answer
21 views

Fail2ban MTA=Postfix Setting in Jail Config giving Error

In /etc/fail2ban/jail.local, when I have the MTA setting to Postfix, Fail2Ban is showing an error and is unable to start. [DEFAULT] ignoreip = 127.0.0.1/8 bantime = 1800 ...
0
votes
1answer
28 views

Change location of maildir

Standard Linux installation provide a maildir in /var/spool/mail/$user (that's actually a single file holding all emails, not a "mail directory"), soft-linked by /var/mail/. I'm going to set up ...
1
vote
1answer
32 views

Postfix 'tlsv1 alert unknown ca'

I have VPS (server A) and hosting (server B). On the server A, I've set up mail server (debian, postfix, dovecot, postfixadmin and roundcube, self-signed cert, TLS only auth) which works fine: I can ...
-3
votes
2answers
43 views

Postfix/Dovecot Issues receiving Mail

I am having an issue with PostFix and Dovecot. I followed this guide: https://github.com/opensolutions/ViMbAdmin/wiki/Mail-System-Install-on-Ubuntu and when mail is sent into the server, this is in ...
1
vote
2answers
21 views

Postfix and access restrictions for unknown clients

I'm trying to configure a postfix mailserver and I have a doubt related to parameters like smtpd_reject_unlisted_sender and that sort of things. Of course, I would like to configure my server in such ...
0
votes
0answers
15 views

New install of DKIM NOQUEUE: milter-reject

I am trying to configure DKIM for my mail service. Postfix on Gentoo is kicking back the error -> 2014-10-26T07:28:23+00:00 emailer1 postfix/smtpd[25554]: NOQUEUE: milter-reject: CONNECT from ...
2
votes
1answer
45 views

Postfix + Php Mail() VS Postfix + SMTP

Most CMS (Joomla for example) comes with php mail() as default and has the option of changing it to SMTP if we want. I will be setting up both the webserver and mail server (Postfix) in the same VPS ...
0
votes
1answer
40 views

postfix relay emails dynamically

Is it possible to relay incoming emails dynamically with postfix's relayhost? relayhost = proxy:mysql:/etc/postfix/email2server.cf and I used mysql database to query each email with relay host. But ...
1
vote
1answer
62 views

Why is OpenDKIM not signing and verifying my emails? (CentOS 6.5, Postfix & OpenDKIM)

I'm running: CentOS 6.5 Postfix 2.6.6 opendkim: OpenDKIM Filter v2.9.0 Compiled with OpenSSL 1.0.1e-fips 11 Feb 2013 SMFI_VERSION 0x1000001 libmilter version 1.0.1 Supported signing ...
1
vote
1answer
45 views

Postfix and “local mail”

That's the first time I'll configure a mail server. I explain you the complete picture. Currently, my company company.com has an ...
1
vote
1answer
48 views

Rewrite or change MAIL FROM:<> with postfix or mailman

I've got a problem with laposte.net free french email provider : since several weeks now, their smtp servers don't accept empty MAIL FROM anymore. Here is a sample telnet session : $ telnet ...
0
votes
2answers
30 views

Why does postfix on AWS give me “Invalid MAIL FROM address provided”? I have production access

I'm running the postfix mail server on my AWS box. My domain is mydomain.com. I have set up virtual mapping such that emails sent myuser@mydomain.com should be forwarded to target-user@gmail.com.com. ...
0
votes
1answer
61 views

Postfix - Relay all incoming mail to another host

I have 2 hosts, one is mail1.example.com The other is mail2.example.com Both servers have it own public ipv4 ips (But in different geo locations) Domain name has mail1 MX as mail server. I ...
1
vote
1answer
31 views

How to move properly from Postfix/Dovecot to Google Apps

here is the situation: we had a mail server configured within a VPS (using Postfix/Dovecot) with the mail for 1 domain being managed. We just moved the mail for that domain to Google Apps. The MX ...
1
vote
0answers
22 views

postfix disable blacklist checking for registered user

Many users has dynamic IP and sufficient number of these IP is blacklisted. How to disable check Postfix blacklist only for registered user? I want only block incoming mail from blacklisted IPS only. ...
0
votes
1answer
26 views

Which difference between /etc/aliases and virtual_alias_maps in Postfix?

Which difference between /etc/aliases and virtual_alias_maps in Postfix and where should I put aliases from local accounts to virtual user accounts (i.e. from root to postmaster@example.com)?
0
votes
1answer
30 views

Make Postfix accept all login credentials

I have setup a Postfix as a relay for an embedded device with a severely broken STMP implementation. Therefore I need to make Postfix to have AUTH enabled and to accept ANY combination of username and ...
0
votes
1answer
38 views

openssl s_client shows TLS working on ports 993,465, but mail clients time out on connection attempts

With the recent scares over POODLE, we have begun the process of changing everyone's connections to TLS, instead of SSL... While this process went smoothly for HTTPS, it seems that Dovecot & ...
1
vote
1answer
18 views

Clamav milter forward a copy of infected emails

I have a working postfix + clamav installation. How can I configure this to not just quarantene infected emails but if this happens also send a copy of the email to the sysadmins address? What I ...
0
votes
2answers
97 views

Scalable Multi Server E-mail setup using Linux/Dovecot

One of my clients ask me to set-up a multi server, scalable email system. I can configure multiple servers to send emails. By using PHP Mysql based login script, users will be redirected to each ...
1
vote
1answer
35 views

postfix/smtpd[1337]: warning: hostname example.com does not resolve to address 93.184.216.119

I am having trouble figureing out what exactly the following error message means. It pops up in the logs whenever a mailserver from 192.168.x.x address is pushing mails. postfix/smtpd[1337]: ...
3
votes
1answer
41 views

Postfix - forward rejected by unknown recepients emails to SPAM-learning mailbox

I have Postfix + BitDefender FRAMS running as hygiene gateway before few Exchanges. BD FRAMS can learn it's Baesian filter by download SPAM and HAM emails from dedicated mailboxes. Because we have ...
1
vote
1answer
31 views

Postfix to Postfix relaying

I've got a (possibly unusual) situation with using Postfix to relay mail to another Postfix mail server that then needs to send the email out. I've read plenty of tutorials and seen instructions for ...
0
votes
1answer
34 views

Postfix illegal address syntax

My postfix install is set up to forward all email going to example.com to my other mail server at mail.example.net. This works fine for all addresses except !@example.com -- the example.com server ...
0
votes
2answers
13 views

Postfix - mynetworks listing options

I am setting up Postfix to relay mail for our internal devices that do not support authentication. We will have a number of devices. Is there an easier way to list out devices vs. just listing them ...
2
votes
1answer
31 views

Continuously monitor the postfix Mailqueue (real time)

Is there a command to look at the Mailqueue of Postfix in real time. I know of the commands, postqueue -p and mailq. What I am looking for is real time monitoring of the queue. Similar to when i ...
0
votes
1answer
61 views

Postfix - receiving many “Undelivered Mail Returned to Sender”

I once set up my server using this guide (or a very similar one) But from time to time I have days or weeks of flooding "Undelivered Mail Returned to Sender" to my inbox. Oh and I am using catch-all ...
-2
votes
2answers
26 views

How to remove Postfix queue messages sent to a specific domain

I have a server with multiple domains. How can I clear all Postfix queue messages for a specific domain?
-3
votes
0answers
13 views

On AWS/Ubuntu how can I setup postfix email forwardin to gmail? [duplicate]

I have an AWS Ubuntu box. It's pointed to by mydomain.com. I have setup the A records and the MX records through Amazon Route 53. I have opened up incoming port #25 on this box and can connect to it ...
0
votes
2answers
90 views

Why can't I send/receive emails from AWS Ubuntu using Postfix?

I'm trying to send/receive emails on my AWS Ubuntu box. To do so, I'm following the instructions posted by Amazon here. (I skipped the section entitled "To configure integration using a secure ...
2
votes
2answers
57 views

can I add global alias in virtual_alias_maps but only for local domains?

I want to create a global alias for all my domains to catch all mail to addresses like postmaster@ I've added theses lines to aliases.pcre: /(MAILER-DAEMON|postmaster|abuse|webmaster)@(.*)$/ ...
-1
votes
0answers
21 views

Postfix Flagged For Spam

I run a small server for a few websites and last night if got flagged for rate limit spam from Google and my host blocked port 25 to prevent it. I've had a grep for some of the emails and whilst I ...
-1
votes
0answers
50 views

`Sender address rejected: not owned by user` in Postfix

I am getting the following error when I try to send an email from a client on my home computer through my authenticated SMTP server, to receiver@gmail.com. Oct 17 09:21:40 debian postfix/smtpd[1643]: ...
2
votes
1answer
32 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
25 views

Sending mail with Postfix from multiple domains on the same server

I have a dedicated server with multiple Ruby on Rails apps on it. Each of these apps run on their own domain. When configuring Postfix there are parameters called "myhostname" and "mydomain". As far ...
0
votes
1answer
21 views

Postfix acts as sender for unathenticated connections on port 25 for $relay_domains

My postfix can be set as SMTP server on any email client, on port 25, no auth, to successfully deliver e-mail to any domain listed in $relay_domains. This is bad, and can be easily used to send spam ...