Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [smtp-headers]

Email headers such as Received-By: are SMTP headers.

105 questions
1
vote
2 answers

Number of issues with postfix, DKIM, and mail getting rejected or bulked

I'm having a number of issues with Postfix and mail sent being rejected or put in the spam/junk folder. I am trying to send emails on behalf of a number of my customers. I've got a postfix server set up and running, DKIM configured(open-dlim) and…
Jacob R
  • 111
  • 3
1
vote
1 answer

Filter emails based on missing header in Postfix

How do I reliably enforce a policy of certain header being present in all messages in Postfix? For example, To: header. I've read about header_checks and used them previously to filter messages based on present headers, but apparently they're not…
sanmai
  • 531
  • 5
  • 19
1
vote
0 answers

How can I dump email headers to plaintext files?

I have a .pst for which I would like to extract header information for all emails and dump it to one file per email. How would I go about doing this?
icannotfly
  • 11
  • 1
1
vote
2 answers

Forwarding email with postfix via AWS SES

I have a server with postfix MTA installed that accepts mail for my domain, hereinafter @example.com. I need to setup forwarding for certain emails@example.com to other emails . e.g. @gmail.com and this needs to be done using SMTP transport via…
Alexey
  • 49
  • 3
  • 16
1
vote
1 answer

Can't find received_header_text in exim.config file

I would like to modify received_header_text to add additional "Received: ..." header for authenticated mails - so gmail import will check SPF against our server, not client IP. But my exim.conf does not contain received_header_text option and I…
Zbyszek
  • 175
  • 1
  • 10
1
vote
1 answer

Postfix: Get real forwarded-to address

Our system is set up such that *@our-server.com goes to reader@our-server.com. We automatically process email and it's easier/faster to connect to a single account that has all email rather than the hundreds we'd have otherwise. But in some cases,…
chroder
  • 664
  • 2
  • 8
  • 17
1
vote
1 answer

Postfix: how to redirect a single email address depending on the sender

I'm trying to add a rule to Postfix. My goal is as follows: when anyone EXCEPT (server@example.com) sends an email to (info@example.com) forward it to (sales@example.com). If server@example.com is sending the mail, simply allow it to flow…
Ryan Griggs
  • 963
  • 2
  • 14
  • 29
1
vote
1 answer

Where does e-mail header "Received: from..." come from?

I sent myself an e-mail from my server to my gmail account, here is one of the headers (partially redacted): Received: from cpvds3xx.xxx.com (dev1.xxx.com. [209.51.132.xxx]) by mx.google.com with ESMTPS id…
THX-1138
  • 121
  • 4
1
vote
1 answer

Exim4: How to add or rewrite Reply-to: header in outgoing messages?

How can I configure exim header rewriting to take care of forgotten Reply-To: headers in emails leaving our company? We want to have certain Reply-To: headers added to all official emails leaving the company. E.g. Reply-To:…
pefu
  • 679
  • 1
  • 6
  • 24
1
vote
1 answer

Postfix bad notify parameter syntax

Please bear with me as I'm not an expert admin I have a linux mail server that has been running for a couple of years and now all of a sudden a certain user is unable to send emails. They immediately get a response from "System Administrator"…
Russell
  • 13
  • 4
1
vote
2 answers

Conditionally Rewrite Email Headers (From & Reply-To) Exchange 2010

I have a client who maintains Company A (with email addresses %username%@companyA.com) and they own the domain companyB.com however there is no "infrastructure" (no Exchange server) set up specifically for companyB.com. My client needs to be able…
NorthVandea
  • 11
  • 1
  • 3
1
vote
1 answer

Spam avoidance issue

I'm working on a project right now that sends email as confirmation of purchase. Some emails are still being received as spam. I have signed the domain up for google apps for business & am using the PHPMailer code base (that is used for sugarCRM,…
Reece
  • 167
  • 6
1
vote
1 answer

postfix additional header addition

X-LBSMTP-Spam-Policy: SendBlaster SMTP is a paid relay service.We do not tolerate UCE of any kind. Please report it ASAP to abuse@lbsmtp.org. I want to add such a header to mails sent by my postfix mail server. I have postfix 2.33 in my centos5…
sam
  • 13
  • 2
1
vote
1 answer

Postfix delivery based on headers

I need to filter email delivery in Postfix based on a specific header. Lets have the following example: There's some PHP script that will dispatch emails to the local MTA (postfix). These emails contain a specific custom header (for example sake,…
José P. Airosa
  • 188
  • 4
1
vote
1 answer

DNS bind & mail server - received by unknown

I have a web server that talks to a mail server when sending an email. Now I'm hosting my own DNS, however, since then I see that one of the email headers says: Received: from webserver.domain.com (unknown [192.168.0.1]) where webserver.domain.com…
Mike Darrow
  • 11
  • 2
1 2 3
4
5 6 7