Tagged Questions

Unsolicited e-mail, comments or posts, often sent out in large volumes; possibly but not necessarily commercial in nature

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0
votes
1answer
190 views

Prevent server beeing flooded with requests

I'm hosting a Wordpress-blog on an Apache server (shared hosting). For some reasons I've been receiving like 100 requests per second to xmlrpc.php for a few days. The access.log looks like this: ... ...
0
votes
1answer
44 views

How to block mails from a server in gmail

I am getting mails daily from different mail address like ry8029@fastmail.fm ry1532@outlook.com etc. Since , the mail Id is changing daily , I can't filter those mails. I checked that ...
0
votes
1answer
318 views

SPF + ISP Smarthost, always untrusted?

One of the ways mail-servers protect themselves from spam is by SPF-records, a DNS look-up saying what ip-adresses are allowed to send mail from a given domain name. Another way the mail-servers use ...
0
votes
3answers
53 views

Using another mailserver and domain because of spam status

A customer (customer.com) kind of abused a mailing service (iContact) by sending to much promotions. They used their main email as sender (info@costumer.com). Because of that action, hotmail banned ...
1
vote
1answer
157 views

Email Delivery to Gmail Breaks After Implementing DomainKey

I have a personal VPS that I use as a personal email and web server. Today I was diagnosing email, and I created a test account at Gmail. At first I was not implemented DomainKey and only SPF was ...
3
votes
2answers
772 views

Mail sent to gmail goes directly into spam

First I would like to state I already searched through the database for similar questions to mine. Tried all of those suggestions but none really seem to work. The problem is the following: I ...
2
votes
1answer
78 views

What to do with a denounced IP?

I have a VPS and I use it as a personal email and web server. Although there are some other domains hosted on it, the number is less than 5. From the start, I wasn't able to send emails to Gmail or ...
0
votes
1answer
132 views

What will be the SPF entry in DNS?

We are using magento on our server. Magento sent transactional emails directly from our server using php mail function, along with this we are using third party webmail service. Means our mx entry ...
0
votes
1answer
69 views

Locating malware on network

I am trying to isolate an email sending malware on my network. The headers are as follows: Received: from z.local.domain (172.18.248.22) by z.local.domain (172.18.248.22) with Microsoft SMTP Server ...
1
vote
2answers
177 views

Mac server infected with spam agent

We have a huge trouble :( .. Our mac server makes a spam delivery. Our IP already blacklisted in about a dozen of servers (checked with http://mxtoolbox.com/). We have another computers in the same ...
0
votes
1answer
108 views

Can't deliver emails to microsoft

I have a postfix server, on Ubuntu 13.04. On my domain, I set up correctly every MX, SFP, DKIM and A record. I've tested them with gmail, reports DKIM and SPF PASSED. So no problems, my mails comes ...
0
votes
1answer
69 views

Spamming from Exchange 2003

I am apparently spamming the world (about 1000 a day) but cannot figure out how. Mxtoolbox does not list me as an open relay and I have disabled all relays that I can find. I have run every virus ...
-1
votes
1answer
353 views

Spam Filters - Why does the same message fail via one smtp server but not the other?

I have a PHPMailer script sending email. If sent via postfix localhost it is marked as spam with these headers. Delivered-To: xxxx Received: by 10.58.210.166 with SMTP id mv6csp82473vec; Sun, ...
-1
votes
2answers
254 views

Server sending out SPAM [duplicate]

Update: It does seem as the server is not compromised, but is used as relay server. Now I'm trying to figure out how to disable this. I have server running Ubuntu 12.04 LTS with several domains ...
0
votes
0answers
32 views

Switched google apps domains; now certain emails aren't delivered?

We recently moved from one google apps domain to another, and used Backupify to transfer email accounts, etc. Since then, we've had intermittent issues with customers not receiving emails or having ...
-1
votes
1answer
447 views

sendmail - Server Sending Spam? [duplicate]

for the past day my server is being used to send a spam. I'm using the Amazon Linux Distro (RedHat based). It has sendmail 8.14.4. It is setup to require authentication, SSL etc. Below are some ...
0
votes
2answers
113 views

Postfix spam flood from my network

I have some issues with my postfix server. Recently it started sending spams, but only in my local network, since open relay has been closed, only allow to my network. I've tried a lot of solutions ...
0
votes
1answer
2k views

Can message go to spam because of X-AUTH and X-SID fail on hotmail [duplicate]

When email with header as below comes to hotmail, it is put into spam folder. May be this is because of X-AUTH-Result: FAIL or X-SID-Result: FAIL? Or maybe the reason is different?How can I fix this? ...
1
vote
1answer
103 views

Spam avoidance issue

I'm working on a project right now that sends email as confirmation of purchase. Some emails are still being received as spam. I have signed the domain up for google apps for business & am using ...
1
vote
3answers
376 views

Chinese bot visiting non-existent page every 5 minutes

Since 02.05.2013 some sort of bot is visiting my website, every 5 minutes. Most of the time it calls this URL, which doesn't exist: /viewtopic.php?f=3&t=849 Always with this user agent ...
0
votes
2answers
369 views

Mail goes to spam when using `mail` from command line

I've a CentOS 6.4 server with DirectAdmin. When I send an email using the mail command from command line, it's always marked as spam by Gmail. So, every system emails go to spam and so do every emails ...
1
vote
2answers
144 views

How to properly filter outgoing e-mail?

I have a platform consisting of many web servers doing shared web hosting. These servers run Linux and host tonnes of Wordpress, osCommerce, Joomla and other open source website platforms. Every now ...
0
votes
1answer
123 views

Reverse dns for web/mail server with single ip

I have a single server with single ip running a web server, mail server and bind (all for a single domain). In my DNS zone file I created A records for www.domain.com, mail.domain.com, ns.domain.com ...
0
votes
1answer
99 views

Reverse dns and SaaS Spam Filters

We have an exchange server in the office that for a year or so has just used the built-in spam filters - we have added the SpamHaus IP addresses so that some basic spam filtering is done. However, ...
0
votes
0answers
148 views

Applying exim ACL to mail from backup server

I use exim as a mail server. To combat spam, I have a catch-all email address, and use a custom email address for every service I sign up to. If they leak my address to a spam list, I can just block ...
1
vote
0answers
73 views

Can someone explain SMTP Callbacks when BATV is enabled, and when to issue the verification?

This Wikipedia article describes how SMTP verification of the MFROM may have issues if BATV is enabled. Servers that reject all bounce mails (contrary to the RFCs). To work around this problem, ...
1
vote
1answer
111 views

Reverse DNS lookup not resolving correctly

I've been searching and searching for the answer and I can't find it. My problem is that all of my emails sent from my server are either going to spam folders or not being delivered. I am trying to ...
-1
votes
1answer
386 views

sieve in dovecot is not filtering spam message

In Centos 6.4 i use postfix with LDA Dovecot and webmail squiremail, amavis-new with spamassassin. Spam is marked with subject Spam. I want in my squirelmail to filter spam messages an move in to ...
0
votes
1answer
380 views

plesk qmail spamassassin scan outbound email

We have a dedicated server running Plesk 9.5.4 (yes I know that's old) with Qmail as the MTA and Spamassassin and Spamdyke installed. Spamdyke works a treat for blocking inbound mail based on rDNS ...
0
votes
0answers
37 views

On multiple spamming-blacklists after desinfecting network computers

We are currently listed on a couple of spam-blacklists since last week. I have taken the following approach to prevent this from reoccurring: scan every (windows)-device in the building using ...
0
votes
1answer
500 views

How to Isolate source of spam on Centos 6.3 Plesk 11 server

Been spammed and the header is showing: X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network Received ...
0
votes
3answers
69 views

Windows Server 2003 used as a Spam Relay

We have a server running Windows Server 2003 and Matrix Control panel. We are continually used to relay spam, which fills the badmail folder and gets us blacklisted. The bad mail folder filled the c: ...
1
vote
3answers
235 views

How to prevent Linux server from spamming?

I installed mail scanner for spam protection, but is there any script for Linux to notify me or email me that some one spaming on my server ?
2
votes
1answer
581 views

Exchange Server 2010 Relaying Spam

Recently I began receiving AOL spam feedback reports from our exchange server. As I investigated I found that hundreds of spam messages were being relayed through our exchange server. Although I am ...
-3
votes
3answers
85 views

identifying emailids that flagged your email as spam

We send out emails to many people who may be interested selling old books. Some people ask us to remove them from our lists and we comply gladly. But some others simply flag our messages as spam. We ...
1
vote
1answer
26 views

Spamhouse PBL and smtp auth - LAN

Have next setup: I understand than the communication between email-clients and my email-server over the internet must use SMTP-AUTH. Otherwise, my mailserver can get into Spamhouse PBL database. ...
2
votes
2answers
663 views

How to make sendmail accept connections from localhost only

I need to secure the server by making sendmail-mta accept only local connections (from localhost), so that any external (potential spam) connections are denied. I use Debian 7.0 currently.
2
votes
0answers
194 views

How to identify the user/computer that is relaying spam through a mail server?

For the past couple of days, at certain intervals, a huge load of email is dumped on my Exchange 2003 server and relayed out until it gets blacklisted everywhere. Nothing like this happened for many ...
26
votes
7answers
3k views

Why is it a bad idea to use a customer email as the from address

I've got an application that emails users once they have filled in a form. It uses a no-reply@customerdomain.com as a from address. The customer wants it to use the email from the form as the from ...
0
votes
1answer
283 views

In Heroku's add-on of Sendgrid, how come I don't have to enter TXT fieldn in my DNS records?

When I used Amazon SES, I had to put TXT records in my DNS so that Yahoo/Gmail knows that the server is allowed to send from my domain name. However, when I signed up for Heroku and Sendgrid Add-on ...
0
votes
1answer
398 views

dkim-milter appears not to be signing my emails correctly in VirtualMin

I have a VPS that I had a fresh install of CentOS 6 on it and then I installed virtualmin on it and we've been great for a few months. I've been hosting a handful of domains from there and on one of ...
0
votes
2answers
93 views

Do email spam detection block domains?

Does email (like gmail, yahoo, hotmail) providers block domains? Or do they mainly block IP addresses? I'm wondering...what if people use my domain to spam others? Then it would be unfair to me ...
0
votes
0answers
227 views

Server is being used to send spam email via sendmail

When I run sudo tail -f /var/log/mail.log I can see a number of 'live' entries appearing such as Jun 6 00:40:03 ks393391 sm-msp-queue[2641]: r55MV0l1001642: to=ledbpw@gmail.com, ctladdr=www-data ...
1
vote
1answer
60 views

Advertise NO-SOLICITING (RFC3865)

Does it bring anything to specify the Solicitation class keywords in Advertise NO-SOLICITING as per RFC-3865? For instance: dom.spammer:ADLT,dom.listing:ADV
0
votes
1answer
137 views

Spam sent from fake email accounts on my domain [duplicate]

One of my clients is getting thousands of "Delivery Status Notification (Failure)" emails per day and it's replied to random email accounts that don't exist on the domain. The content of the emails ...
-1
votes
1answer
43 views

SpamAssassin: Spending responsability for user blocks

Currently 99% of my clients have their sites on hosts that use CPanel. In CPanel, there is available tool SpamAssassin (spam filter), where I manage the blocks of my clients, adding addresses to the ...
1
vote
0answers
61 views

How can I prevent my messages from being marked as spam by Gmail? [duplicate]

I'm working on a PHP application. Swift Mailer is used to send messages to clients. Messages are personal (like appointment confirmations with specific dates/times for the receiver), so we're not ...
1
vote
1answer
57 views

Email rejected as spam goes through on a reply [duplicate]

Having some problems with mail messages which are rejected as spam when sent directly to a user at a certain company address but if that users sends us a message and we reply, it is accepted. If I ...
0
votes
1answer
149 views

receiving phishing/spam from known address names and localhost

We are using SmarterMail 11.2 and are receiving spam from senders in our address book (name only, different email). In the header i see "Received: from localhost" and other suspicious things. In the ...
0
votes
1answer
139 views

Dovecot Forward Spam

I was wondering if anyone had any knowledge on how this idea can be done. It's not a requirement but more of an idea I came up with that I don't know how to word my google searches to find out if it's ...