1
vote
1answer
15 views

Postfix allows unauthenticated users to send emails

Hey I set up Postfix to use cyrus SASL implantation and I'm able to login and send emails, but I can still telnet on port 25 and send mails even if I'm not authenticated, which I whish to deny. ...
0
votes
1answer
19 views

SMTP Headers Guide [closed]

Is there a guide/cheat sheet that explains Email/SMTP headers in detail? I could not find any useful resources after plenty of Googling. The purpose is to understand the headers in order to be able ...
0
votes
0answers
40 views

Email without SSL

I have been trying to setup LabTech Email settings. Unfortunately, it accepts only email settings that are not encrypted; no SSL/TLS i.e POP 110 and SMTP 25. Tried to setup SMTPSSL in the same, but no ...
0
votes
0answers
29 views

How to send Outlook mail when port 25 blocked in intranet

We have a build server which runs daily builds. We want to send email to project leaders after each build with details (success, fail, etc). The problem we have is that we don't have access to port ...
1
vote
1answer
96 views

Postfix is Sending Spam [closed]

I have an Ubuntu 12.04 server, hosted on AWS, that powers a dozen WordPress installations using Nginx and php5-fpm. The problem just began one day. My server was down. Panic! Whenever I turned it on ...
0
votes
1answer
39 views

Japanese cannot connect to european SMTP server

My SMTP server is located in central Europe and I can connect to it just fine. However, a user from Japan was not able to connect to my server using Thunderbird. I set it up together with him and ...
0
votes
1answer
22 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 ...
0
votes
1answer
44 views

Postfix: relay mail to smart host for specifc users

Currently i have a VPS that has a host of email accounts on for several domains. most are simple and have all local mailboxes. but i have one user that wants to have a hosted exchange account but ...
0
votes
0answers
23 views

How to determine if STARTTLS IMAP & SMTP connections are encrypted

I use Thunderbird to connect to an IMAP and SMTP server. This works on the port numbers usually associated with unencrypted mail, but I have specified STARTTLS and am told that the servers enable ...
0
votes
0answers
16 views

SMTP routing cases: same @domain as sender and different @domain

I would like to know what is the difference between sending an email to the same @domain as the sender and sending to a different domain. I cant really find a detailed explanation on the web. From ...
0
votes
0answers
13 views

Exchange 2007 import SMTP addresses to distribution group

Is there any way of importing SMTP addresses for a distribution group in exchange 2007? I have a list of email addresses (eg a@domain, b@domain...) in a csv which I want to add to the distribution ...
1
vote
0answers
195 views

Roundcube SMTP Error (-1): Connection to server failed

I am trying to send an email via RoundCube. Recently I manually installed it to a subdomain instead of accessing it via cPanel thus it's way easier on clients. I always get this error when I try to ...
0
votes
0answers
95 views

SMTP blocking a legit email, no way to contact yahoo or anyone about it?

Very frequently, I have trouble emailing from Yahoo to people with their own domain. For example, when I send an email from myname@yahoo.com to someoneelse@theirowndomain.com, I'm getting a bounce ...
-1
votes
2answers
43 views

Mailserver standard filenames? [closed]

I have 3 mailboxes (gmail, 2 from univeristy) and 3 mailclients (apple mail, k9, thunderbird, evolution at work). Getting the clients to work together is a pain in the .... What are the names for ...
0
votes
1answer
79 views

Postfix for use with Django

I have a default Ubuntu 13.04 install on which I'm running a simple web game using Django. I need to be able to send email from that and the forums I'm using, I don't need to receive any mail or ...
1
vote
3answers
108 views

“SMTP protocol error” when sending mail in emacs

I'm trying to configure emacs to send mail through an SMTP server, but so far, I've not been successful. Here's the output I'm getting: 220 __SMTP.SERVER__ ESMTP Sendmail ...
1
vote
1answer
82 views

How do I send email from my domain? [closed]

I am running Discourse and sending verification email, but the emails have my gmail address as sender and they go to spam folder and Google throws a warning that this may be phishing. Do I need to ...
0
votes
0answers
22 views

mutt with imap occasionally fails to send an email - where does it go (where is the “background” limbo), and what can I do to fix this?

I have started using mutt with IMAP. The SMTP server is a university server and I use zile as my texteditor when composing emails. set smtp_url=smtp://djcm1@smtp.hermes.cam.ac.uk:587/ Roughly one ...
0
votes
2answers
36 views

Connection via tracepath but not via telnet

EDIT: I have problems sending emails with Thunderbird. IMAP connection works without problems, but SMTP is not connecting. I have tried different settings: No connection security (port 25), ...
0
votes
1answer
100 views

Setting up Ubuntu server to send mail

Can anybody point me in the right direction on how to set up my webserver so that the sites can send mail via phpmailer? I have installed postfix using sudo apt-get Then during the installation I ...
0
votes
0answers
96 views

Snort smtp rule detect given text

Very new and just learning some snort rules but looking to get a rule which looks for content of an email which contains the word test just for an example. alert tcp any 25 -> any any (msg:"test ...
0
votes
0answers
24 views

How to check email generated by WHMCS billing system before they are actually sent

The WHMCS billing system that I use sometimes generates wrong invoices (due to bug or me using it wrongly due to the complexity of the system) and this is being sent out via SMTP (for my case gmail) ...
0
votes
1answer
55 views

Disabling smtp authentication for local mail on same domain

I am very new to smtp and am looking for something to deal with the current situation: I have several servers running really old software (music automation) and they all need to report in daily via ...
0
votes
1answer
108 views

How to use a different SMTP mail relay for sending emails with a message size over 10MB

I use Amazon SES as a mail relay service for my emails as my server host blocks connections out on port 25. SES works great, however occasionally users send large attachments (>10MB). Whilst I could ...
0
votes
1answer
34 views

ip set for smtp mail failed

I config smtp server with postfix , and Debian 6. I set 1 ip from 4 Ips of server for smtp server mail.mydomain.com xxx.yyy.zzz.hhh but when I send mail with smtp server , Destination server ...
0
votes
0answers
736 views

Postfix smtp send error - what's wrong here?

I am currently setting up a new virtual private server with Debian Wheezy. I managed to install postfix, dovecot (IMAP) and MySQL. Up to now, I can successfully login via SSL with an external mail ...
0
votes
3answers
97 views

Every minute incoming, rejected connections to SMTP

I have a feeling my server is being lazily DDoS'ed, though, I have never experienced it before, so, I may be wrong. Every minute, my journal logs the following 3 entries: Nov 05 21:10:47 ...
0
votes
2answers
143 views

ipa.gov.newyork@usa.com is sending mail using our Synology mail server

This is scary and I don't know where it came from. I got a problem sending emails got an error SMTP error 452. As I searched the meaning of this I got "Too many recipients received this hour.." So ...
0
votes
2answers
488 views

DDoS attack on SMTP

I am not sure whether this is the right place to ask this. But now I am in a great difficult situation. Our server is undergoing SMTP DDoS attack. The mail service has been totally down. We have ...
3
votes
4answers
167 views

Is the SMTP of the ISP safe?

I am just curious, because I am using the SMTP of our ISP in my mailserver. Do you think it is safe to use, meaning can my ISP snoop in my emails? What do you think?
0
votes
0answers
15 views

Different routes for different TLD's in postfix

This might come as an odd request. Thank you for looking at it. I am setting up a series of postfix+dovecot+mysql mail servers internally. I am having trouble figuring out how to make them both ...
0
votes
0answers
260 views

SMTP Server configuration in localhost

I have setup SMTP server on my linux (Ubuntu) server and send mail using PHPmailer. its works perfect. but i want to send mail throw my local host using that server..so how can i do that... i have ...
1
vote
2answers
96 views

Is “smtp” the only valid name for smtp server?

Is smtp the only valid name for smtp server? Or any name is valid. E.g. Is valid this too: mail9s2b.example.com or only this: smtp.example.com The guy on the hosting support told me that only ...
0
votes
1answer
263 views

Can I change the Thunderbird SMTP, POP3 and IMAP server setting editing some file?

I'm right now in a massive email migration to Google Application (GMail). I must change all the server settings in each Thunderbird client of all my users. I have the Administrator password of each ...
-2
votes
1answer
3k views

Centos - How to install an SMTP server, POP3 and IMAP to send email to Gmail, Yahoo, Hotmail, Live, Yandex?

i have a CentOS 6.4 in mediatemple.net, i need send email to Gmail, Hotmail, etc. I tried installing postfix, sendmail, dovecot, cyrus, procmail, spamassassin, etc., and even does not work because ...
0
votes
1answer
60 views

Why use googlemail smtp server instead of your server?

I ran into this post: Getting Postfix to work on Ubuntu with Gmail which describes how to use gmail as relayhost for postfix. And I'm wondering what would be the benefits of doing so? I have some ...
1
vote
0answers
102 views

Has Gmail just dropped the option to send mail through your own SMTP servers? [closed]

On my current gmail account, I have added an other email account I own to send email though my own smtp servers. This is easy to do in Settings > Accounts > Add another email address you own, in ...
-1
votes
1answer
330 views

iCloud rejecting emails sent via smtp with error 550 5.7.0

I'm trying to set up msmtp with a MobileMe/iCloud account. I have 2 other accounts set up, and they both work just fine. But with the MobileMe account, I'm getting an error: msmtp: server message: ...
0
votes
1answer
594 views

How to configure Postfix so that I can authenticate via SMTP to localhost

I have a Postfix MTA configured to which I can perfectly log in from remote via SMTP (Thunderbird, Python, etc.) but when trying to use the same script with the same credentials while locally on the ...
0
votes
0answers
155 views

Why does postfix take so long time to receive emails from gmail?

How can I manually check for an email from the command line? How can I force postfix to receive/update emails? The email from gmail takes 8 minutes till it will be received by postfix. How can I ...
0
votes
1answer
33 views

Different Protocols with Email Client and WebMail

Can someone tell me if I have covered all Email protocols when using an Email client and Web Mail to send and receive email? Email client: POP -Receiving an email; IMAP -Receiving an ...
1
vote
1answer
140 views

Do spam filters block emails whose 'from' field's domain is different from SMTP server domain?

Consider an email sent from smtp.eumx.net: From: "John William" <john.wm@inter7.jp> Reply-To: john.wm@inter7.jp To: foobar@yahoo.com Cc: peter@gmail.com, mary@gmail.com, ... Note that the ...
0
votes
2answers
136 views

Is it possible to host a website in one server and host emails with this domain on another server?

I have 2 servers, one with hostgator and a second one which is much faster. I would like to use the server on Hostgator for Email and the other one (which is faster) for the website. For what I've ...
0
votes
1answer
47 views

retieving SMTP server and port

Is there a way to figure out the smtp server and port details for my company's email server ? I found from the outlook 2003 that we are using "Microsoft Exchange Server" and server name is ...
1
vote
1answer
1k views

Exchange Online SMTP Not Working With Any Email Client

I am trying to switch our company mail server to exchange online. I have successfully added my domain and users and can send and receive mails through Outlook Web App. I can also send and receive if I ...
0
votes
1answer
896 views

Can't connect to SMTP server using PHP Mailer but can with Gmail?

I am getting the following error from PHP Mailer when running a script in my local PC: SMTP -> ERROR: Failed to connect to server: A connection attempt failed because the connected party did not ...
8
votes
1answer
5k views

The simplest way to set up a secure, IMAP, email server? [closed]

I would like to get rid of Google as an email provider, and set up a complete email solution on my dedicated server. The issue: I wish the setup to be as simple as possible, so that it wouldn’t be a ...
0
votes
2answers
369 views

How can I send an email?

This may sound like a bit of a stupid question, but I have an RFC 2822 standard email file: To: Mr Person <person@example.com> Subject: Finally Figured Out How To Send Emails! From: Josh Date: ...
1
vote
2answers
468 views

How to find out what port is Exim 4 using for SMTP?

I'm trying to debug a problem with email sending on my home machine, possibly a router related problem. This is on Debian squeeze with Exim 4.72-6+squeeze3 (the default Exim 4 Debian package for this ...
0
votes
1answer
25 views

Application fails to send email with attahments

I have an application that emails reports as attachments. it works in all clients' sites except for one. i am using a gmail account there. all the settings are right, outlook express can send email ...