My IP address in incoming HELO RSS

1

How can I block all emails from email servers that announce themselves with my IP address.
Example from my SMTP logs:
81.17.19.146 - 222.222.222.222 [23/Mar/2012:08:48:59 -0600] "HELO -? 222.222.222.222 SMTP" 250 42

Where 222.222.222.222 would be my mail servers IP address.

There should never be another server that identifies itself with my IP address.
Thanks

by Matt Reed 7 years ago
2

@Matt Reed: Just enable the HELO blacklist and add your IP to the user defined helo blacklist as a simple text-expression.
Configuration

> Tests
> HELO blacklist
> User-Defined HELO domain blacklist [Configure]
> New
> Domain Expression: 222.222.222.222

leave "Simple text / wildcard mask" selected and don't forget to save your settings

by Winfried Pohl 7 years ago
(in reply to this post)

3

1. Start the Administration Tool.
2. Navigate to Configuration / Tests / HELO blacklist
3. Click "Configure" under User-defined HELO domain blacklist
4. Click New, enter 222.222.222.222, add comment text (e.g., "Our MX IP in HELO")
5. Click OK, then OK again
6. Save your settings to apply the changes (Ctrl+S)

by Krisztian Fekete (Vamsoft) 7 years ago

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