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

learn more… | top users | synonyms (1)

0
votes
0answers
7 views

Difference between mail and sendmail in regards of Laravel 5

I wish to have a brainstorm with you all about Laravel 5 and it's mail function. The point is: I have multiple servers with CentOS 7 installed and using them as webservers for laravel 5 based sites. A ...
1
vote
1answer
19 views

SPF redirect modifier

The SPF record for domain replace the current record. The macro-expanded domain is also substituted for the current-domain in those look-ups. Examples: In the following example, the ...
0
votes
0answers
33 views

How to BCC copy all outgoing emails with Postfix?

I have a VPS on DigitalOcean where I have installed Postfix. I'd like to add in BCC an email address of my choice for all the emails that passing through Postfix go to email addresses not in my ...
-1
votes
0answers
25 views

Email delayed 9 hours [on hold]

I have a webserver, that also sends out password confirmation/recovery mails. The raw message headers show that the emails are delayed exactly 9 hours, which is strange. The special thing about this ...
-4
votes
0answers
19 views

production mail server setup with opendkim, spamassassin, clamAV [on hold]

i am told to setup a new mail server? any help will be useful.thanks i advance. postfix/dovecot spamassasin clamAV opendkim etc... any help or useful tutorial will be great..
0
votes
2answers
26 views

Postfix Catchall - Avoid Spam

I've 2 accounts on my CentOS server configured with catchall email accounts. Lately I've been receiving bounced emails with virus that were supposedly sent from my server account, Ex: ...
0
votes
2answers
16 views

Service to test outgoing mail for SPF/DKIM/SRS validity?

We're setting up a redirection-based mail server with a lot of complex moving parts, including the standard ones that apply to everyone like SPF/TLS as well as the more complex ones needed to ensure ...
-3
votes
1answer
19 views

Telnet times out on local machine but works externally

Im trying to get inbound mail working with postfix. Nothing is showing up, even in the maillog. Outbound works perfectly, but inbound doesnt. If i use telnet from an external server over port 25, i ...
0
votes
1answer
16 views

Mapping of Exchange error codes to SMTP status codes

Exchange error codes use a dotted notation x.y.z, for example 4.3.1 is an "Insufficient system resources" message. Is there a 1:1 mapping between this and SMTP error codes without dots (431) and if so ...
6
votes
1answer
67 views

Trying to setup mail server, can't get ports (25, 587) to work

I've searched everywhere and I'm really struggling with this one. I think I've tried just about everything. Background info VPS with CentOS 6.7 Postfix 2.6.6 dovecot, amavis, mysql, fail2ban I've ...
0
votes
0answers
11 views

Simple cross platform way to archive selected emails

We are a small NGO with its members using a various email-clients on various operating systems. We have the requirement to archive all external mails to and from a selected set of partners and ...
-1
votes
0answers
5 views

Exim to forward all mail to mailin

How can i setup exim, to store mails regulary but to send copy of them (forward) to local mailin server runinng on port 9025 for example? Same question is for sending mails, i want to send them to ...
0
votes
0answers
5 views

Software to send all mails to external script with exim and dovecot

I am using exim and dovecot, and i have used roundcubemail for reading and sending. Now i need solution to create api for sending mails via php and smpt, and solution to forward all incoming mails to ...
1
vote
0answers
22 views

Postfix Not Sending Or Receiving Emails

I followed this tutorial to setup a mailserver on my centos VPS: https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-mysql-on-centos-6 And I am able to send emails to my account ...
0
votes
1answer
18 views

Fail2ban not respecting email settings

In Fail2ban I have set up my email settings as: # Destination email address used solely for the interpolations in # jail.{conf,local} configuration files. destemail = me@hotmail.com # # Name of the ...
0
votes
0answers
30 views

Postfix: Alias from multiple adresses to one

I've installed a postfix/dovecot combination on my VPS the last days and everything works fine. Now I want to add mail forwarding, so that mails with a specific suffix, like this: ...
-2
votes
4answers
45 views

SPF, CloudFlare, Google Apps - Email sent through Contact Form marked as spam

One of the main reasons of putting your server behind CloudFlare is to hide your server's IP address so an attacker can't DDoS your IP and render CloudFlare obsolete. By putting your server behind ...
-1
votes
1answer
16 views

Exchange sendas from disposable +plus email adress

I'm trying to set up marketing automation and like to send the email with bounce tracking through my exchange 365 server. The marketing automation suize uses disposable addresses like ...
0
votes
1answer
23 views

How do I specify the hostname SPF shows to users?

I have a production Magento site which is on a dedicated host. The machine has it's "hosting" name, host-123.hosting.com, as well as its public name, buystuffhere.com. DNS has been configured for ...
0
votes
0answers
10 views

Email issue not going to rediffmail. However - email going to other account and email been received by rediff from other accounts

I have recently migrated server Initially there was a problem in sending email to rediffmail due to Helo issue. It was rectified through PTR set up Emails were going Now am finding a new issue in ...
2
votes
1answer
30 views

What exactly does “probable open proxy: command=POST” mean in sendmail logs?

I noticed the following in my sendmail logs: May 11 11:11:16 foobox sendmail[21111]: uADEFHG21111: [1.1.1.1]: probable open proxy: command=POST http://foo2.example.com May 11 11:11:16 foobox ...
-1
votes
0answers
25 views

Is there a way to prevent sendmail/php scripts from relaying email through a smarthost?

On a cPanel server, running EXIM as a mail server, I implemented a smarthost to send email though Sendgrid. I'd like to route only business email though this smarthost. That is, emails sent from ...
-1
votes
0answers
18 views

Check if expected mail received

I'm using a backup system that sends an email after a successful backup (and also after an error). But what if what failed was the email? Each one of the servers have different schedules (using ...
0
votes
1answer
20 views

Mutt suddenly stopped sending emails with attachments via Postfix

Issue arose when an attachment froze at the send stage (after uploading fine) in mutt 1.5.24. I updated to mutt 1.6.1, same compile flags, but still didn't send. Tested in Thunderbird (icedove) and it ...
0
votes
1answer
48 views

%CPU at 99% when cronjob runs php script every minute

I am using a debian server and for some reason when I run this php script using crontab every minute it says that I am using 99% of the %CPU with the php command (in the cronjob the command is php) ...
1
vote
1answer
47 views

How to set up an SMTP Relay Server

I have 2 servers (X and Y) and an SMTP server for sending emails. X needs to send an email using the SMTP server, however it cannot resolve the host for the SMTP server. This is inevitable and I need ...
0
votes
1answer
18 views

Cron jobs not sending mail - Solaris 11

I need some assistance please. I've written several scripts which runs on a cron schedule as root in Solaris 11.3. When I run these scripts manually I receive the mailx mails. But when the scripts ...
0
votes
1answer
35 views

Why is my mail blocked by Gmail (Marked as spam)

Three days ago I have installed CentOS with Directadmin what I've received from TransIP. The mailserver is now working, configured DKIM, SPF, DMARC etc. There is only one problem... mailproviders ...
0
votes
3answers
21 views

Email for domain vs subdomain at two different locations [duplicate]

I would like to know if I have a domain foo.bar and want to host the main email server at other provider, such as by google, simultaneously having another email server subdomain.foo.bar locally. In ...
-1
votes
0answers
10 views

SPAM Automatically been added in Subject line of Email after changing Server [duplicate]

I have just migrated server a day back to Siteground for Joomla based site However, facing a unique issue - wherein all system generation notifications (for easydiscuss / rsform pro / all other ...
0
votes
1answer
35 views

Protecting Distribution Groups

Problem A number of our AD distribution groups have recently been receiving spam from outside our network. These distribution groups are open to receive mails from outside of our network as we work ...
0
votes
0answers
24 views

Exim restrict send emails only from predefined list of emails

I use Exim MTA. I need to restrict hosting (lamp) send emails only from predefined list "From:" emails per user to prevent massive spam if website was hacked. Users use php to send emails via builtin ...
2
votes
1answer
29 views

The greeting from an IMAP server — format?

I'm trying to understand the specification of IMAP found at INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1 (RFC3501) Does the greeting from a server always have the following format? * OK ...
1
vote
0answers
34 views

Use postfix through a proxy. How should it be configured?

Postfix by default uses ports 25, 465 and 587. In my configuration, I enabled TLS encryption using the option smtpd_use_tls=yes in postfix's main.cf. This makes all smtp communications encrypted as ...
0
votes
1answer
33 views

Sync a Maildir backup to an account

I have a client who created about 20 mailboxes on a server, and they have been using them for a few weeks. So there is mail in them, that can't be lost. Now they recovered a backup of those mailboxes ...
1
vote
3answers
88 views

Is it possible to reject certain emails in procmail? [In SMTP session rejects based on email content]

Let's assume a typical setup where procmail is called from sendmail to filter incoming emails into correct mailboxes. Is that done while the incoming SMTP connection to sendmail is still active or is ...
3
votes
1answer
38 views

Logwatch is not respecting MailFrom

I've gone through today to setup Logwatch on my server and have installed this all successfully. I've followed this guide on Digital Ocean and set the MailFrom parameter to: MailFrom = ...
-1
votes
0answers
10 views

Setup Citadel with wildcard domain alias

I'm setting up a Citadel email server, and I have a lot of domains I manage. I need to be able to receive email at several addresses (webmaster, etc) at any of those domains. I've tried setting up ...
0
votes
0answers
9 views

What's a reproductable way to set up a Linux server for sending e-mails but no spam? [duplicate]

I've created a software that has to be installed onto a Linux server and from time to time it has to send a notification email. So, for people who want to use my software, I've created a bash script ...
0
votes
0answers
20 views

changing dovecot/ispconfig mail user password via mysql prompt

I want to change mail user pass of a dovecot/ispconfig system via mysql prompt. I was using a script with the following query in another machine (just dovecot) : UPDATE mailserver.virtual_users ...
0
votes
1answer
54 views

Set PostFix relay_host only for outgoing emails

I setup an architecture with a PostFix mail server and an Encryption gateway. I am relaying all my outgoing SMTP traffic (even mails going from mydomain.com to mydomain.com) to an encryption Gateway ...
0
votes
1answer
9 views

OSX Server - Logging POP Mail Connections

I am trying to keep a running record of the users that are accessing our OSX 10.6.8 Mail Server using POP instead of IMAP. The Server Admin application features a running list of Mail connections ...
0
votes
2answers
37 views

Should a mail server receive mail at the hostname or just the domain?

When configuring a mail server, should it be setup to receive mail at the hostname or just the domain? For example, if the hostname of the mail server is sub.domain.tld, should mail from anywhere be ...
0
votes
0answers
22 views

Enterprise batch processing of application-generated emails

Here is what I perceive is our problem. In our corporate environment, we have developed over 40 custom .Net applications (and growing). A good many of these send email notifications in some fashion. ...
0
votes
1answer
183 views

SMTP: Received from unknown [xxx.xxx.xxx.xxx] -> but IP does have a valid PTR/RDNS

I got the following problem. I got an smtp-relayserver that collects outgoing mails from other servers and checks them (spam assassin). Now the headers are showing this: Received: from ...
0
votes
1answer
31 views

linux: forward mail in mailbox

Is it possible to forward mail out of a mailbox to another mailbox? I know about .forward, that's not what I want to do(seems like that's 100% of the answers out there). I already have mail in a ...
0
votes
0answers
5 views

Gmail relay server not working from one sender 550-5.7.1 [duplicate]

I've got a postfix server set up to relay emails sent to my personal domain to a gmail account. It's been working fine for everything until today when a sender reported that all their emails are being ...
3
votes
1answer
77 views

Secure Email Settings for Email Clients & for PHPMailer

I'm trying to work out how to make my outgoing/incoming email's as secure as I can possibly make them. First of all, my domain has Wildcard OV SSL Certificates, I have copies of the .csr, .crt and ...
0
votes
3answers
57 views

Setting up an email proxy server?

So i have 4 application servers and each one directly connects to an SMTP server to send out the emails. What I want is to have something in the middle that my servers connect through instead, and ...
1
vote
0answers
42 views

Postfix relayhost not working

I have a simple goal: I am setting up a monitoring system and I want this monitoring system to send me emails when a problem with my servers occurs. I have Postfix installed. And I want to use mail, ...