1
vote
3answers
240 views

Are generic reverse DNS entries acceptable for an outgoing SMTP server?

Our PTR records are managed by our ISP, as our ranges are too small for them to consider delegating to us. So, every time I want to update an entry, I have to email their support team. In an effort ...
0
votes
2answers
158 views

How often do MXLogic lists get updated?

Some domain refused to accept email from my domain due to MXLogic filtering. I've sent an email to falsepositives@mxlogic.com and they responded promptly that they changed their records. Question: ...
0
votes
3answers
897 views

My mailserver is getting stuck in http://cbl.abuseat.org/

I have a small system that sends about 15 email/day to my personal email account. I have set up the web form so that the users email is set as sender when I send the email to my inbox so it's easy for ...
1
vote
6answers
340 views

I'm hosting reseller and I got spam problems. Please help to solve

Our provider suspended our account with 5000+ clients and their sites. The reason was that the whole IP range was blacklisted by SpamHouse, but our provider did not explain what emails, form what IP ...
1
vote
1answer
276 views

Where/How Can Spam False Positives Be Reported To MessageLabs?

An email I sent got flagged as spam by MessageLabs on the recipient side. I'd like to proactively engage MessageLabs to tell me more about why this got quarantined (or at least fix it). Is there ...
1
vote
1answer
405 views

McAfee Secure Messaging Service / Postini: false positive?

I'm puzzled by this email message that gets quarantined by McAfee Secure Messaging Service (it's based on Postini) for no reason that I can think of. Here are the Postini headers: X-pstn-2strike: ...
1
vote
5answers
482 views

DNSBL - Email Servers Spam

I'm currently doing research on a better way for emailing customers our news letter and not using an ESP such as vertical response since most users there use purchase list and ruin the shared IPs for ...
0
votes
2answers
140 views

how to enable bounceback on internet facing linux email relay w/ Exchange 2000 backend

I have to use a Win2k/Exchange 2k setup for our companies mail. There is no way to change or upgrade that. Due to various hacking & spam scenarios that played out, we implemented a linux based ...
2
votes
3answers
787 views

How do you configure sendmail to reject Email with a Date header too far from real time?

A friend of mine using (I believe) qmail has it configured to reject, as SPAM, any incoming Email with a Date: header that is too far from real time. I can't figure out how to do this with sendmail. ...