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3
votes
1answer
64 views

Server “shows signs of being infected” - how to resolve email blacklisting

I help manage 178.32.51.182 and noticed we were getting bounced emails because of several blacklists those are: CBL FABELSOURCES Spamhaus ZEN so I checked the first blacklist here: ...
0
votes
1answer
25 views

Exim Blacklist -> *domain doesn't work

I have a manual filter in the exim. It was done this way: In section: "CONFIG". I put: domainlist exim_blacklist lsearch;/etc/eximblacklist In Section: "PREROUTERS". I put: driver = redirect # ...
0
votes
1answer
86 views

Google Apps with internally/customer hosted SMTP relay - (not using smtp-relay.gmail.com service)

We are using Google Apps for our email service, and send a bulk of around 15k emails a day from our internal relay server (its outbound only, no open-relay) to customers. Recently, we ended up ...
0
votes
0answers
22 views

Prevent Exchange blacklisted with 2nd IP?

" As a side note. You could put a server on 2nd IP and have your main gateway different ip. This will prevent your server from getting blacklisted occasionally since only legitimate emails will come ...
-4
votes
6answers
3k views

Remove blacklist from spamRATS

I have checked my IP in SpamRATS and the result is the following: Standards Compliance: Does IP Address resolve to a reverse hostname... Passed! Does IP Address comply with reverse hostname ...
1
vote
1answer
75 views

What is the best approach to handle email form abused by bots?

I just recently moved to a Dedicated Server hosting from a normal Reseller Hosting, and currently facing issue with email blacklisting. One of my clients has about 4 contact forms that automatically ...
3
votes
2answers
90 views

SMTP: Which IP should I monitor?

I use a relay server to deliver external mails. I use relay server's IP in SPF record. But I'm not sure about blacklist monitoring/checking. Should I check main server's IP or relay's IP?
-4
votes
1answer
262 views

Send thousands emails for newsletters [closed]

i have a huge list (5K emails) of email addresses, it's not spam , these are newsletter emails i have to send. I'm wondering , since i have to send these emails with my personal account (verified) ...
3
votes
2answers
493 views

Alternatives to avoid domain from being blacklisted

We outsource our web and email hosting to a web hosting company and occasionally I get complaints from our clients or internal staff that mail from our domain does not reach the intended recipient or ...
1
vote
5answers
777 views

Best Practices for Open Relay Email Server

I have a scenario where I need to setup postfix with no TLS, no SMTP authentication, and open relay allowing from only one remote IP address. Emails from this remote IP may have spoofed "from" address ...
2
votes
1answer
1k views

How can I change exim's DKIM and SPF for emails sent?

I've now spent 2 hours trying to figure out this issue and I am about to give up and go to bed. I've been having issues with Gmail rejecting emails from my VPS server because of false spam alerts ...
1
vote
3answers
2k views

How to go about deploying batches of 5,000 emails?

I have been warned that sending too many emails too quickly can trigger an internet email blacklist/spam filter. I have a list of approximately 5,000 customers that I want to send a newsletter to. I ...
1
vote
5answers
136 views

Mail server blacklists

Recently I've had a few clients on a server having issues with a blacklist. I've been googling for about an hour and am a little tired of it, but maybe someone here can help me. What do blacklists ...
1
vote
3answers
639 views

Log all outgoing mail from PHP on a Redhat box

The IP of one of our servers has been blacklisted and I would like to attempt to work out why. There are many Apache virtualhosts on the server so the logging would need to be split up by domain and ...
5
votes
3answers
482 views

Clean up an opt-in email address list

We have a client that has an email marketing list of about 50k contacts that have at some point opted in to their mailing list. They haven't used the list for a while and on their last campaign got a ...
3
votes
3answers
1k views

How do I prevent mail from my Exchange server from being blocked?

Recently one of our client machines was infected with a virus and I believe was spamming addresses in the user's contact list. Since then our server has been appearing on blacklists and it has been ...
2
votes
2answers
391 views

Guidelines for Mail Servers - How to Maximize Deliverability to Remote Inboxes

My non-profit association has an Exchange server and a ListManager server to handle announcements to our members (about 800 email addresses) and several low-traffic discussion listservs. On the ...
1
vote
2answers
466 views

SMTP Outbound-Only: More or less reputable?

I'm reconfiguring some mail architecture and wondering about this... For the purposes of avoiding blacklists and maintaining a good MX reputation, is it better to have: One public IP / SMTP server ...
4
votes
5answers
3k views

Why are email messages sent from my PHP application being treated as spam?

I have this funny thing. When I send an email out, to yahoo, gmail or hotmail users. If I include a link, it will treat as spam mail. But if i removed the link, it will become "inbox", not spam mail. ...
-2
votes
6answers
740 views

Mail server blacklisted

I have a mail server on x.x.x.x global IP. But it is blocked by SpamCop DNSbl spamcop dot net and CBL DNSbl cbl dot abuseat dot org .They inform that from my mail server lot of virus is generated. ...
4
votes
3answers
816 views

Customer's IP Listed on RBL - What steps do you use to prevent black listing?

Customer called saying their e-mail was bouncing from particular vendors. Investigated it and identified they were listed on more than one RBL/CBL. Restricted firewall to only allow traffic on port ...