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

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Outlook 2003 pptx attachment won't open

I have Outlook 2003 and was emailed a pptx attachment. When I double click it, it always asks to save instead of opening it. Docx files open fine. I have the Office 2007 compatability pack installed. ...
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0answers
10 views

How do I move a Maildir to a subdirectory of another user?

When an employee has left the company I want to move their entire Maildir to be a folder in an "old employees" account. Given that Maildir uses the filesystem exclusively, I feel it should be ...
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1answer
10 views

PostFix 550 5.1.1 Recipient not found from external email

This is a new installation. PostFix reports "550 5.1.1" "Recipient not found.", when users exist. User can send email out everywhere. Users can send email to each other through localhost. All ...
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1answer
19 views

Why is my new domain email triggering spam filters?

I recently purchased and set up a new domain to send emails with Google Apps but noticed many of my emails are going to spam. I ran it through the isnotspam.com spam report and got this report. This ...
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0answers
8 views

Vultr modsec check (Spam Attempt) [duplicate]

i received vultr's warning spam email, that said: 1 attacks from x.x.x.x has been detected against malekal.com and when i contacted support, he told me use tcpdump (but i'm new here, i dont know ...
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41 views

How to Send Anonymous Email Without Getting Traced by FBI? [on hold]

First of all i would say, if you want to b anonymous from FBI that doesn't mean you are going to do something Illegal, Sometimes there are some reason when you want to reveal some secret inform ...
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3answers
40 views

Reject incoming emails that use your own domain as sender

It would be nice to reject incoming emails which use one of my virtual domains as sender address while not being a legitimate user of mine. I know that I can reject incoming emails which use an ...
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1answer
10 views

make postfix bypass amavis completely for specific domains

I want the postfix agent to bybass the amavis scanner for all mails from and to a specific domain. So, i added the following line to /etc/postfix/main.cf header_checks = ...
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1answer
24 views

IMAP authentication with Courier throws error

I've just set-up PostFix + Courier + Roundcube using the following site for my instrcutions: http://flurdy.com/docs/postfix/ I was attempting to log into my webmail and it failed. Checking the logs ...
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26 views

SMTP error : Remote host said: 550 5.7.1 At least one FROM header address not allowed to send mail from IP ADDRESS

We are developing an email sending app, and we allow our users to specify the From: header their emails will be sent from. Let's say our domain is mydomain.com and our client domain is ...
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0answers
17 views

Email migration service [on hold]

We are currently outsourcing our emailhosting to Rackspace and need a solid, trustworthy, time saving and hopefully relatively cheap way to migrate all of our users and mailboxes to Rackspace's ...
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1answer
47 views

Can't send email on Windows Server 2008 with Mailenable

I've got a VPS running on Windows Server 2008 and I'm using Mailenable as an Email Server for POP3 and SMTP. I've had the VPS since January 2015, its my first time configuring a server by myself, but ...
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1answer
27 views

How to reinject scanned mail into the queue using sendmail

I would like to pass incoming mail using virtual_transport to a transport spamassassin (main.cf: virtual_transport=spamassassin) and then reinject the scanned mail into postfix using sendmail. The ...
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2answers
51 views

Spam delivered by mx.google.com despite SPF fail

Some spammer use our e-mail address as sender in forged e-mails. Now we got thousands of bounced messages from no longes existing e-mails. We set up SPF and DKIM records but it does not stop. ...
2
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0answers
25 views

Posftix as relay - rewrite recipient in incoming messages

I have Postfix as MX server, receiving messages from the internet and forwarding them via LMTP to dovecot maiboxes. So recipients are specified in relay_domains relay_recipient_maps transport_maps ...
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3answers
43 views

What subdomains does an Exchange 2013 SSL certificate require?

I need to order a SSL certificate for an Exchange 2013 server. I am going to order an UC Certificate from Comodo Group Inc. I understand that I need to specify the below subdomains whilst ordering: ...
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1answer
43 views

Email storage server - NAS or SAN? [closed]

I'm looking for storage server that could store ~34TB (34 SSD disks of 1TB) of emails. I'm thinking about two NAS QNAP storage servers, but I'm not sure if it's OK to use NAS instead of SAN. Any help? ...
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0answers
15 views

Repair Outlook 2007 OST File [closed]

Previous versions of Outlook had the Inbox Repair Tool, which allows you to repair OST/PST files. Currently, I am using a Windows Vista and Office 2007 computer. I need to repair my OST file. It ...
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7 views

How do I send e-mail from an aliased domain via Office365?

I have a Office365 account with out own domain (a.com) and we have added a second domain (b.com) Both domains receives mail just fine. How do I let the users choose which domain they should send ...
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1answer
16 views

Exchange 2013 OWA: Always download remote content from domain/sender

We are using Exchange 2013 for multi-tenant email hosting and I am trying to create a policy that will always show remote content from a specific sender domain (or single sender is fine too) in OWA. ...
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0answers
24 views

How to troubleshoot marketing e-mail inbox rate / deliverability? [duplicate]

After previously using managed ESP's, we've recently switched over to our own server (CentOS 6) that's set up to send bulk e-mails with 12 IPs/SPF/DKIM. Campaigns are processed and sent via ...
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2answers
21 views

Syncing with deleted IMAP account

Due to server data loss, I will have to recreate IMAP e-mail accounts for a client. He still have copies of old e-mails locally in Outlook. My question is: when Outlook syncs again with the new, ...
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1answer
25 views

Keep receiving abuse messages from my service provider, but cannot find anything in maillog

I keep receiving from my provider abuse messages, that spam is being sent out from my server, but I cannot find anything in the /var/log/maillog files. No information is being logged there about ...
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1answer
13 views

Microsoft Exchange / E-mail / Restore from Journaling Mailbox

Would any Microsoft Exchange (2013) admins know the best way to parse a journaling mailbox to re-create a user's mailbox? (this isn't my exact requirement, but is simpler to explain and accomplishes ...
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1answer
30 views

My server mail going junk in hotmail and yahoo [duplicate]

All my server mails going to spam in hotmail and yahoo. Here is my full mail source. Can any one please help me to sort out this issue ? ...
3
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1answer
35 views

How can one configure exim still to reject invalid recipients after an earlier ACL returned “discard”?

For the reasons set out in my earlier question Originating (non-critical) emails from a "less-trusted" host, it unfortunately seems that we must run an SMTP server for the sole purpose of accepting ...
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2answers
68 views

How to send a large number of emails to a dated list of receipients

One of my clients was to send an email to ~100,000 recipients. The client is a state organization, the emails are not promotional, the recipients are all members of the organization and they are sure ...
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1answer
18 views

Configure postfix to run filter only with selected mail else all other mail pass without being filtered

I am running postfix and I'm using ubuntu 14.04. I created php script and i injected it into postfix to filter incoming mail. All run as I wish. But Now I want my postfix to run filter only with ...
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1answer
34 views

Originating (non-critical) emails from a “less-trusted” host

Background We have a webapp running on webapp.example.com that (amongst other things) sends messages by email from time to time. These messages are non-critical: whilst we would like to make a best ...
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1answer
36 views

DNS MX Record resolves fine from my servers, but is not cached/returned? [closed]

So, my DNS server is returning the MX records just fine: DNS: avuna.org for type# 15 returned 0000046D61696C056176756E61036F7267 Has the proper records: mail.avuna.org A 198.167.143.175 ...
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3answers
75 views

What to do if one doesn't want to receive email bounces?

Background—the standards RFC 5321 §4.5.5 states: All other types of messages (i.e., any message which is not required by a Standards-Track RFC to have a null reverse-path) SHOULD be sent with ...
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0answers
8 views

outlook calendar send email on update

We have a shared mailbox that is used as a holiday/meetings calendar in outlook for all employees (this was set up before I joined, else wise I would have set up just a shared calendar). All Users ...
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1answer
26 views

Postfix Email Server Manipulation

I have one postfix mail server (postfix-2.10.1-6.el7.x86_64) under CentOS7. Now, our App Department is using it to send sms'es via email. To: 123456789@domain.tld To: 987654321@domain.tld To: ...
2
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1answer
49 views

What I have to modify to have SELinux allow nginx to act as an IMAP/POP3 proxy?

By default nginx under CentOS 7 will fail to start if used as an IMAP/POP proxy. This is because of SELinux. How can SELinux's configuration be altered, without disabling its protections, to allow ...
2
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1answer
25 views

Benign Email Headers

On our server, we have two separate email systems: if it's a long queue of recipients, then we store it in a queue to be sent in a cron. If it's less than X number of recipients, then it sends ...
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2answers
18 views

Forward non-hosted .de email addresses to hosted .com

I have a domain with associated web and email hosting package ( let me call it mydomain.com ). I also have a second domain ( mydomain.de ), this one doesn't have email hosting. I would like to make ...
2
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2answers
61 views

Fail to trigger my php script when mail received by my Postfix

I am running Postfix mail on ubuntu 14.04.1. I want to "trigger a PHP script when Postfix server receives a mail" After investigation and the help of many tuto, . I have configured "postfix" & ...
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1answer
18 views

Change OSSEC alert emails “From” header

I'd like to know how to change the name in the "From" header for emails sent by OSSEC. I couldn't find any information about that. Alerts I receive from my server are quite well organized. And OSSEC ...
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0answers
23 views

Postfix server routing outbound mail through spamassassin

I had a Postfix smtp server configured and working properly with Spamassassin and OpenDKIM functioning normally when I decided to also enable Postscreen. In doing so, all my outgoing emails are now ...
1
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1answer
33 views

Configure postfix to send email only from authenticated and receive from anywhere

I`m having problem configuring postfix to receive emails from any domain but block senders for only authenticated users in localhost My main.cf is like : mydomain = domainname myhostname = ...
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1answer
27 views

Possible to setup a secondary email server with unique addresses?

It is possible to setup two email gateways such that if a record doesn't match the first server then it attempts a second server before failing to deliver? Background: Client recently switched from ...
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1answer
87 views

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 ...
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0answers
26 views

How to Route google apps gmail based on subject line?

I set up a bunch of routes in my new google apps system (migrating from doing inbound email with mailgun forwarding). In one case we need to forward all email with a particular subject to another ...
0
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2answers
35 views

sendmail/exim4 two servers one is send-only

We have the following setup: One web-server on Debian with PHP on the main domain, that can send emails, but must not receive. It has exim4 installed. Let's call it example.com One mail server on ...
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1answer
38 views

How would get an email server reputation via cli or script?

I am trying to monitor email server reputation via cli or script i.e. https://www.senderbase.org/ I found a way supposedly to do it via dig, but the output appears to be very incorrect. It indicates ...
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49 views

Major Mail Issue - SMTP Local Server Not Working

My database (MySQL), web server (IIS 8 ) AND SMTP server (IIS 6) are all on the same dedicated server (Windows Server 2012) that I'm honestly renting for a bit of system admin practice. I followed a ...
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0answers
17 views

Setting up mail server that can handle multiple users for side project

I want to set up a mail server that can handle multiple users. Basically, the end application will assign each user an address, say example1@testdomain.com. The users can send emails to this address, ...
5
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1answer
59 views

Postfix: selecting relay host based on From: mail header rather than envelope sender

I've successfully set Postfix to relay emails via Mandrill using SASL and sender_dependent_relayhost_maps with a MySQL table so that different senders connect to Mandrill using their own Mandrill ...
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1answer
24 views

giving AD users shared email account

I have a microsoft platform, with active directory and exchange. Normally, all AD users are assigned mailboxes associated to that userid. Our organization employs many transient personnel, who come ...
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7 views

Migrating just hosting (not e-mail or domain registration) from GoDaddy to DreamHost [migrated]

I am attempting to migrate my domain hosting from GoDaddy to another service, as GoDaddy's servers seem to be painfully slow when handling interactive forms, PHP applications, WordPress, etc, even ...