SMTP is a protocol built upon TCP/IP, used for outgoing email transmissions, and email relaying. It uses ports 25 (clear) and 465 (SSL) by default.

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Alpine: work with some e-mails

How can I setup alpine to use more than one mail address? That SMTP Server parameter in config looks like an global. Can someone help me? NOTE: At least for both e-mails on the same server. Thanks.
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22 views

Emails not sending to one specific domain

We have a AWS server where emails are delivered to domains other than our own domain. I have confirm that I can send an email to my gmail account but I can't send to my hosted gmail account. So for ...
2
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0answers
16 views

SMTP works via Mail client but not via openssl

I'm trying to troubleshoot an SMTP issue. My credentials work fine via the OS X Mail client (and in other areas), so the credentials are definitely good. However, when I try to submit them via: ...
2
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2answers
29 views

Sending mail to lan ip failed

In a Ubuntu os, with sendmail installed (maybe as default installed package) but not configured, I tried to type both echo "Text message" | mail <dest_ip_address>\!dest_user and echo "Text ...
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1answer
42 views

Is it safe to remove “received” header?

Is it safe to remove "received" fields created by my mail server for all outgoing mail? For example like this (all "received" headers from my server are deleted by postfix "smtp_header"checks"): ...
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1answer
21 views

mail command successful, but mail was not received by recipient

I used mail, its exit status is zero but the recepient is not receiving any mail. What could be the problem? I used this code: mylinsystem:/etc/mail # mail -v -s "test" ...
2
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2answers
71 views

outgoing SMTP 25 port blocked by ISP?

I just setup postfix but I just realized my ISP outgoing blocks port 25 (SMTP). How do I send email outside? I can see my mail queue is filling up. Any suggestion?
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1answer
50 views

Reverse DNS does not match SMTP Banner for multidomain hosting

We are planing for mail hosting, we are going to host multiple customer mail domain on single public IP. Now how i am going to set PTR record per customer? because i have single IP and it has to be ...
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0answers
12 views

Postfix: Map display name with smtp_generic_maps [duplicate]

I have a server where I have postfix configured to relay all mails to a smart host. Even mails sent from local accounts to local accounts. Furthermore all mails sent to local accounts are mapped to a ...
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1answer
29 views

How to configure SMTP with postfix with user and pass

I'm looking for a way to enable postfix (or any other mail delivery system) in which I can easily have aliases (user and domain aliases), and in which I can have an external user send mails through ...
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0answers
20 views

What is error code 68 for msmtp and which problems may provoke it?

Sometimes, when I send mails (from alot MUA making use of msmtp) I get the following error message: failed to send: msmtp --account=FOO -t failed with code 68: A process has ended with a ...
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0answers
35 views

Hotmail not receiving emails from a script, but works from the server

I have a working mail server running Debian stable, the following elements are working. SPF DKIM rDNS My IP is not listed in any backlist, I used: mxtoolbox.com for all this. My problem: Sending ...
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0answers
51 views

Confirm DavMail connection

I am using DavMail to connect to my employers Outlook servers. Before I attempt to configure the email client to work with DavMail, I want to confirm that DavMail has been configured properly and is ...
0
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1answer
93 views

mailx: nss-config-dir=/etc/pki/nssdb/: No such file or directory

I am trying to send email using mailx using remote SMTP server (in my case it is office365 SMTP Server). Here is the command: # echo "THis is the Body of the email" | mailx -v -s "This is email ...
2
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1answer
18 views

Check SMTP over SSL

I need to get a look at how my SSL mailserver plays with others; for non-SSL this is easy to do with (e.g.) telnet. Is there a bonified SSL/TLS client that can be used the same way?
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1answer
139 views

How to configure sendmail.postfix to relay on exchange 2010?

I'm currently trying to figure out how to configure sendmail.postfix in Red Hat 6 to work with exchange 2010 relay. I've already configured our exchange server to allow our web server to relay. What ...
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1answer
129 views

How to configure the “mail” command to use an SMTP relay server without using sendmail service?

Since I new to redhat ver 6 linux I wanted to know how I can configure our web server that is running redhat to used out exchange 2010 relay. I already configure our exchange 2010 to allow our web ...
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0answers
199 views

How to configure postfix to send mail to external SMTP server?

I have a machine with http://phabricator.org/ set up on it and I would like to set up postfix to enable e-mail sending to my company's mailboxes (as for notification emails coming from e.g. ...
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1answer
114 views

Exim4 550-Verification failed - how to allow any sender?

Mail sent from a daemon on my server connecting to exim4 daemon light using SMTP seems to be being frozen. In the exim4 log: 2014-10-01 09:52:19 1XZKKJ-00049R-8p <= noreply@example.com H=localhost ...
2
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1answer
119 views

Why doesn't Postfix reject a specific client's connection attempts?

My SMTP server is being probed. It looks like a brute force attach on SASL, where they're going through a password dictionary. Having seen thousands of these lines in the log files Sep 18 14:09:52 ...
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1answer
41 views

Can somebody explain the difference between IMAP and POP3 [closed]

I dunno if I have right understanding or somewhat faulty understanding of the three topics. From a user-end perspective both IMAP or POP3 credentials are what I need if I need to have mail incoming to ...
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0answers
42 views

Can You Send Mail With MSMTP Without Putting the Location, ISP, and Hostname in Header?

I've been testing sending mail with mutt and msmtp. I've noticed when replying to a message I sent with msmtp, my state, hostname, and isp show up in the In-Reply-To: header ...
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1answer
57 views

Altermime and SELINUX

I've setup an application called altermime (http://www.pldaniels.com/altermime/) for postfix (SMTP server) which alters emails midstream. I'm injecting a "X-ListUnsubscribe" header into every email ...
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2answers
810 views

Can't access mail server through SMTP

I'm trying to send email from a server. Testing on my local machine works fine but on my production Ubuntu server, the webserver fails when trying to send email. I'm using GMail as my SMTP provider ...
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0answers
34 views

How to receive emails on CentOS 5 server?

I've installed postfix with this nice tutorial http://wiki.centos.org/HowTos/postfix and postfix and dovecot are up and running. I set up user maildir as tutorial suggested. Now I can check my ...
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1answer
1k views

Postfix: disable authentication through port 25

When using Postfix and IMAP on a mailserver, at least 3 ports are usually opened 25 smtp : incoming emails from anybody (whole internet) 465 smtps : outgoing emails from authorized users (to the ...
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418 views

Postfix error: not yet authorized to deliver mail

I am running a private postfix server for my domain mydomain.com, on server 111.111.111.111 (IP and domain sanitized for privacy reasons) I have sent an email to info@example.com which is on server ...
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2answers
66 views

Where are sent emails stored on unix?

We have smtp installed on the Unix box. I am looking for the sent emails being sent everyday but not sure which location to look for on unix.
2
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1answer
70 views

Can Apache Web server Respond to SMTP/IMAP/POP3 requests?

Bear with me, please. I want to know what functions are provided by the Apache 2.4.9 Web server on Fedora 20. I understand that Apache responds to HTTP request only. I believe that SMTP and POP3 ...
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1answer
2k views

sendmail not working

I have a website where mails are sent. Those mails from website (contact mail, booking mail) are being sent well. But when I go to shell with ssh and give sendmail myemail@mail.com it is not sending. ...
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2answers
3k views

Using port 587 with sendmail

I have been using sendmail to send out mails using internally available mail server. But currently port 25 is blocked for security reasons. I would like to know if there is a way to specify port ...
2
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0answers
398 views

Impossible to send mail to microsoft (hotmail, live …)

I cannot send mail to hotmail with my postfix server. I can send and receive mail from gmail and others, but not hotmail. I made an "Authentication Report" on auth-results@verifier.port25.com: ...
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1answer
274 views

How can I use CNAME in Bind properly?

I'm new to Bind/DNS and want to point/map SMTP, webmail and IMAP to my domain but a check in nslookup is failing. How can I nslookup SMTP this way? The error I get is: smtp.stylez24.com: NXDOMAIN ...
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1answer
494 views

davmail and JAVA INSTALLED MANUALLY

I'm trying to install davmail, I've already install JAVA manually (tar.gz file). After trying with the ppa:webupd8team repo and not having good results. Had to clean a lot of files packages and so ...
0
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0answers
262 views

Connection refused - connect(2)

I have set SMTP settings in both config/environments/production.rb and development.rb also i have added the settings in config/initializers/setup_mail.rb: config.action_mailer.default_url_options = { ...
0
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2answers
2k views

Mutt not sending email when specifying smtp server

I am trying to use mutt as my email client, and it works fine for my gmail account. But when I use my work email, it does not send the emails. It doesn't give any error, it just doesn't send them. The ...
2
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2answers
193 views

Alpine using localhost address

I'm having a hard time figuring out what's going on with my setup, first there's no problem with the imap part as I can see my email, but when I try to send a message I get this error: [Mail not ...
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1answer
100 views

Blanket blocking SMTP with whitelist

So using a VPS environment, whereby we need to block outbound SMTP by default (spammers), with the ability to unblock when needed. We have found some scripts eg: iptables -I FORWARD 1 -d $VPS_IP -p ...
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2answers
142 views

Trying to use TLS SMTP against Exim, getting Security Error back; what's wrong?

OS: FreeBSD9 64 Bit MTA: EXIM4 with TLS with Self Signed Certificate. I am using telnet myserver.com 25 EHLO dummy@dummy.com STARTTLS It says TLS go ahead And then I issue MSG FROM: ...
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1answer
2k views

SMTP issues - unable to connect : CentOS 6.5, Postfix, Dovecot, MySQL

I'm trying to setup an email server on a CentOS system with Postfix, Dovecot and MySQL. I'm following this article for an Ubuntu system: ...
0
votes
1answer
141 views

SMTP server that works with gmail?

I'm running debian and in the past I used google apps free edition. That is no longer available so I won't be able to use it for my new domain on my new box. In the past when I tried to setup a smtp ...
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1answer
24 views

Disabling sentbox in postfix over Squirrelmail

I have installed POSTFIX over Squirrelmail on CentOS Linux... The services I have ran are: service httpd service ssl service mysql service postfix service saslauthd service dovecot But I want to ...
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1answer
90 views

sending mail using telnet [closed]

I'm trying to send mail via the telnet command. I've looked at several tutorials online to use telnet <servername> 25. But I've tried telnet mail.aol.com 25 and it gets stuck on trying ...
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3answers
962 views

Postfix, SMTP Server, PHPMailer

I have an PHP Forum (vanilla forums) and for its registration emails I installed Postfix. Now As I figured it out, vanilla forums uses PHPMailer for email sending procedure. Now my questions are: ...
2
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1answer
2k views

Why I can't send mail to remote mailbox?

I have installed Postfix on my CentOS machine. I can nicely send mails to local accounts with mutt, but when I try to send one to a remote mail like myactualmail@gmail.com, I cannot understand why I ...
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2answers
1k views

How to configure Exim to forward all incoming mail to new server?

I am moving servers, both of them running Debian (oldstable and stable). Both are running Exim4. When I switch the DNS entries over to the new server, I'd like the old server to still forward incoming ...
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0answers
89 views

ssh log sent to email in Cygwin

I am using Cygwin in Windows 7. I am trying to make my syslog-ng daemon send a ssh log via email to me when ever someone tries to log into my computer. I tried using the code below (entered into ...
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2answers
206 views

Format of SMTP headers for scanning inbox email

I am looking for a simple procedure to extract email from my inbox into a file for further processing, using e.g. awk. With "extract" I mean use e.g. regex to get emails with a particular subject. My ...
4
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1answer
8k views

How to Allow Outgoing SMTP on iptables Debian Linux

If I choose to allow all traffic on the OUTPUT chain (iptables -P OUTPUT ACCEPT) mail sends fine. As soon as I lock down my server with these rules, outgoing mail stops working. All else works though, ...
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3answers
7k views

Helo command rejected: need fully-qualified hostname Error

My mail server is in some blacklist cause of spams. I reconfugured postfix. Aften then My customers get this error they can't send emails. 404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need ...