The server configuration of email, including POP3, SMTP, IMAP, and popular server software packages that control email.

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7 views

Fetchmail ignores Emails with Date in Future

we have the following scenario: We're running a Windows Server (with an ExchangeServer) with local users and local Email-Accounts. We also have a Domain and Email-Accounts from a service provider. ...
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1answer
31 views

How can I tell where an email account is hosted?

I have a client that has an old email account that is being used to send porn spam but they don't know where it is hosted or how to close it down. I recently helped move the domain registration with ...
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1answer
15 views

Can an Exchange Online distribution group be configured to forward mail to it's users alternate email?

I've been trying to figure out how to create a distribution list containing personal email addresses for all our staff. This could be done by adding each staff member as a mail contact with their ...
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2answers
17 views

Is it possible that i use not mail.example.com,can i use just another like abc.example.com for my mailserver?

Two questions, two problems. I use cloudflare so I don't reveal my IP, there is a problem I can not use cloudflare for my mail server. Now is it so i am under DDOS because mail.example.com is exposed....
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2answers
22 views

Spf A record for a second domain

I need to use this spf record on example.com domain: example.com. IN TXT "v=spf1 a mx a:smtp.second.net -all" I'd like to know if a client sending an email from bob@example.com domain will pass ...
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2answers
32 views

E-Mail delivery mechanism

Background I am working with email headers for spam detection.Each E-Mail header contains many "Received-from" fields,each "Received From" field added by an intermediate Smtp/Mail server in the path ...
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0answers
5 views

How to autoforward delivery receipts in Exchange 2010?

Does anyone know if there is there a way via server-side rules or transport rules in Exchange 2010 to autoforward received delivery receipts to another mailbox? The rules I already created do not ...
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2answers
46 views

Merging SPF records

I have one SPF record: v=spf1 a mx ip4:111.111.111.111 -all and I need to add one more: v=spf1 ip4:222.222.222.222 include:_spf.example.net ~all How to merge them correctly? Is v=spf1 ip4:222....
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1answer
18 views

How can I send bulk email to a single domain safely?

There are instances where I need to send email blasts to a single domain such users@somesite.com. This list can be quite large at times. In nearly all cases it's a single email and I'll likely not be ...
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0answers
26 views

Gmail is blocking emails from my mail server ( Postfix ) CentOS 6

I'm unable to send emails from my mail server. I've tried every single possible solution I came across. Firstly, I WAS ABLE to send emails but they were going to spam so I decided to install OpenDKIM ...
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2answers
24 views

Multiple MX record priority

My domain MX records points to my webserver Ip address, while GoDaddy tutorial suggest to use an MX record that points to my smtp server ip address. I think that one server point to the other one. ...
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29 views

Postfix spam in queue

Recently our company system administrator quit his job and it is unreachable. I was his coleague and helped him with the IT stuff. After he left we noticed our mail system stopped working. So I ...
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11 views

GMAIL SPAM - What is wrong? [duplicate]

I have a problem with the fact that a message from me to get spam. Here, information on e-mail: Delivered-To: nicehost.pl@gmail.com Received: by 10.157.40.121 with SMTP id h54csp2233302otd; ...
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1answer
53 views

Best Practice: notify email sender that their reverse lookup is broken

This probably should be a wiki, not entirely sure. Before I begin, the external server that performs scanning is a custom amavis/postfix/fortigate pipeline; it is suggested that any changes work ...
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2answers
23 views

DKIM to gmail failing

I'm trying to get DKIM setup on a CentOS 7 server running exim but gmail is returning dkim=neutral (bad format) header.i=@ellie-oli.com; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/...
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1answer
25 views

Postfix Mail Server & hosted Gmail relay setup

I am trying to setup our web server so that it can send emails from various web apps to reset password etc. Our mail is hosted by Gmail with a custom domain eg. mydomain.com. Right now emails going ...
6
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3answers
489 views

How should I create a master index of all email correspondence in an office?

My employer requires all email correspondence in the organization to be indexed, for regulatory compliance reasons. Our mail server is not managed by us, and does not have this feature. Each ...
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0answers
24 views

Why wont my server receive emails from my own address, sent by Mailgun?

I'm managing a reseller Hostgator account, which runs cPanel, and I'm not sure exactly which mail daemon/server they're running. domain1.com and domain2.com are on the same account. Email addresses ...
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1answer
28 views

Ddns mx record configuration

I have installed exchange 2013 in my test lab. Everything works fine internally. Now I want to send and receive e-mail from internet. I have installed no-ip client tool in my exchange server. That no-...
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1answer
15 views

Permission denied for dovecot to access mail directory

I have setup a mail server using Postfix & Dovecot on CentOS 7. When I try to fetch email using thnderbird or any other email clients, I get this error in my maillog file: Jun 19 01:38:23 ...
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1answer
44 views

All outbound emails from my domain get marked as spam [duplicate]

I have a domain, www.duckfox.com, that was using Google Apps mail servers, and now is using Zoho. All outbound emails that I send out will always go to spam, unless that person has already marked ...
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1answer
45 views

Migrate email account from Dovecot to Dovecot servers

1) I need to migrate some mbox imap email accounts from a shared webhosting provider to another one. 2) Both servers seem to use Devecot, as a telnet command on port 143 shows an identical response: ...
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1answer
27 views

SPF Error with redirection

so I have this crazy SPF-Policy problem which looks like that: I have a private domain like 'my-private-domain.com'. This one I'm hosting myself on a vServer and I activated SPF and added the SPF ...
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21 views

What do I need to have an email server that just redirects email@mydomain.com from my business to myemail@gmail.com? [closed]

I have a small website for a small business and I'm using Zoho to handle it's e-mails, forwarding it to my mail box in gmail. Is it possible to have a really small mail server (in openshift for ...
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0answers
45 views

Configure postfix to change outgoing email address from account@localhostname to another email address [on hold]

There are several accounts already created in postfix. They send out automatic emails to users like i.e. to notify them that their account was successfully created. Currently these automatic emails ...
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2answers
15 views

Will it work to use cPanel's global email filters to create a catch all address? [closed]

Essentially, my cPanel account has 'default address' disabled and we've moved from a hosting company that uses a catchall system to this cpanel account that doesn't. In the process we've also moved ...
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0answers
27 views

Make Postfix relay to a different host for sending email based on RECIPIENT domain

Is there a way to make postfix authenticate and relay on a different host for sending email TO a particular domain? The sender domain does not matter, I need postfix to relay to a different host if ...
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1answer
37 views

POP3 and SMTP over port 80 [on hold]

TL;DR I need connect mail clients over port 80. I have a requirement to allow to mail clients connect to my mail provider over port 80. Some users of my company works in clients workplace. In some ...
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2answers
25 views

sending emails from different Smtps in different IPs

I sent mails with different Smtps for example Smtp1 on IP 1.1.1.1 and Smtp2 on IP 2.2.2.2 . which my spf record for the From (info@myDoamin.com) part in emails is : spf1 include:mail.mydomain....
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1answer
24 views

Which Email Server Expands the Recipient List into Many Emails?

When sending a message via a different SMTP outbound gateway, will a message containing multiple recipients in the BCC field be broken up into many messages by the originating server, or the server ...
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3answers
27 views

How do you send an attachment with sendmail?

How do you send an attachment with sendmail? I'm able to send an email with the below: sendmail johndoe@example.com < email.txt I can't find out how to send one with an attachment, I've tried: ...
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1answer
33 views

Confusing e-mail related to sudo

My system occasionally sends me this email. (My domain has been replaced with [DOMAIN] and my username has been replaced with [USERNAME].) Subject: *** SECURITY information for [DOMAIN] *** [DOMAIN]...
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1answer
40 views

Cannot send mail to postfix mail server

I've setup a postfix mail server, my domain points to my server as I'm already hosting the website. However I cannot send any mail to the mail server. I've added the email's such as casper@...
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1answer
43 views

External recipients in distribution group not receiving emails

In Office365, we have a distribution group, group@company.com, set up with the following members: internaluser1@company.com internaluser2@company.com externaluser@external.com (@gmail.com, for ...
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3answers
36 views

SPF block on return-path mail

We make use of a unique return-path email on all email sent to track bounce backs and give feedback, but recently we're getting issues where the SPF record fails because people are allowed to send ...
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1answer
39 views

Can I retrieve email marked as rejected in the SMTP log?

I am using a Sophos UTM 9 SG210 firewall and noticed in the SMTP log that a formerly trusted sender has had 50 legitimate emails rejected. I've since added them to an exemption list, but was ...
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0answers
36 views

Occasional “could not execute mail delivery program /usr/sbin/sendmail”

I seem to be having an infrequent issue with PHP and sending email. Most of the time it works fine but occasionally the email doesn't get sent. Looking in the website logs I can see a bunch of these ...
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3answers
45 views

How to separate linux accounts from email accounts?

I've got a small jack-of-all-trades server running CentOS 7 Linux. Now I need to add email support to it (SMTP/POP3/IMAP/webmail). Most of it is pretty clear, except for one thing - I'd like to ...
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1answer
47 views

courier-authlib: wrong username enters search query

I am trying to setup smtp authentication using courier, mysql on postfix. My passwords in my db are encrypted. When I attempt to connect, I get an auth failure r2d2 ~ # telnet mail.server.com 25 ...
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0answers
29 views

Set Low Disk Space email alerts for windows 10

I want to set email alerts for my disks, so that if there would be 30GB free space then I will get an email alert. I found some solutions for windows 2008 but they didn't work for me in Windows 10. ...
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1answer
21 views

Route 53 email spam

Since 2 months our email address gets abused by a spam bot. It turns out that emails are send via our info@ email address to thousands of recipients of which many mails bounce back and land back in ...
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2answers
58 views

Exim4 does not add DKIM signature

Have spent 2 days trying to tell Exim to add DKIM signatures on my Debian8 server. No success. Have read many how-tos, forums but none of possible solutions wotk on my server. Have generated the keys:...
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0answers
27 views

Inbound message relay using SparkPost

So I've got SparkPost, and they've enables inbound messages, which I want to use. I can get it to send inbound messages to a web socket (https://support.sparkpost.com/customer/portal/articles/2039614-...
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0answers
12 views

Force Exim to deliver mail as if it were remote

I'm messing around with a mail server on a VPS. I can send and receive mail between my local account using exim user@mydomain.com. I can also send mail remotely to me@gmail.com (of course I get a ...
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1answer
16 views

Sending email from Google, Amazon and own mailserver from same domain with DKIM

I have a domain (example.org) for a organization, and we send different types of e-mail: I send email (From: user1@example.org), using my local email-server An other user (From: user2@example.org) ...
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1answer
41 views

Weird mail issue

I've got this little script: $to = 'atsome@gmail.com'; $subject = 'the subject'; $message = 'hello'; $headers = 'From: Admin <admin@mysite.com>' . "\r\n" . 'Reply-To: admin@mysite.com' . "\...
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1answer
38 views

Postfix lost connection with “server/host” while receiving the initial server greeting

I have postfix on CentOS6.6 on my local server(192.168.1.103), from which I'm unable to send emails to any domains. The following is the error obtained when sent to our company email.: Jun 2 11:...
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1answer
25 views

Cronjob change email subject and sender name

I have a cronjob setup using crontab that looks like this... MAILTO=myemail@example.com 00 02 * * * /home/myaccount/myscript.sh This works great and at 2AM it runs the script and emails me the ...
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1answer
48 views

Why don't my domain's messages to a google group get their headers rewritten so DMARC can pass?

Whenever my domain sends a message to a google group on another domain the DMARC alignment fails. This is true for all my approved senders, even using Gmail in my domain. It seems to be because the ...