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trendmicro.com 에서 페사의 이메일 서버가 BlackIP로 차단되었길래 해소할려고 신청했는데, 날아온 메일 내용이 좀 헷갈립니다.

제가 구체적으로 할 수 있는 것이 어떤 것이 있는지 해석을 좀 부탁드립니다.

112.OOO.OOO.OOO is listed on the Trend Micro Dynamic User List (DUL) because it appears to be an IP address not clearly labeled as static.

This email is designed to help you solve the problem.
If you are an ISP, you can

1. Add the rDNS of this IP to clearly indicate static.
 ex: mail.mail-abuse.com (O)
     99-47-70-150.dynamic-IP.mail-abuse.com (X)

2. Add a statement in WHOIS information indicating the space is
   statically assigned.

If you are an end user, please check your email configuration  (STEP 1 below). If that does not stop the IP from being blocked, you can contact your ISP for further action (STEP 2 below).

STEP 1: CHECK YOUR EMAIL CONFIGURATION

Here are two things to check about your mail configuration:

Email Client
============
Check that the Outgoing Mail Server (SMTP) setting on your email client (such as Outlook Express or Mail) is using the outgoing mail server for your ISP. Most ISPs require that you use their mail server to avoid spamming incidents.

Email Server or Proxy Server
============================
If you run a mail server on your computer, or if your local network uses a proxy server, set the SMTP Gateway setting on the mail server or proxy server to your ISP's outgoing mail server. This will force your mail server or proxy server to send all outgoing mail to the ISP first, and then the ISP will relay it to its final destination.

====
Note: If you are a RoadRunner business customer, you may need to contact your ISP to get your business IP marked as static. They will then let Trend know of the change.

STEP 2: CONTACT YOUR ISP

If the step above does not solve the blocking issue, the rDNS for the IP may need to be corrected to clearly indicate it is a static IP.

Trend's Spam Investigations team can work with your ISP to solve the problem. You can find the correct email address to use when contacting your ISP to use by going to the following web page and typing in your IP address:

http://ip-lookup.net/

Then click on the Domain owner info (Whois /Abuse) link and look for an email address. You can use this address to contact your ISP and ask them to work with Trend Micro.

The ISP can start this process by sending an email from their Domain owner email address to ****@****.

Thank you for contacting Trend Micro and we hope this email has helped you to resolve the IP blocking issue.

Kind regards,
Spam Investigation Team
Trend Micro, Inc.
https://ers.trendmicro.com/