> Source: [sk174647](https://support.checkpoint.com/results/sk/sk174647)

# sk174647 - "Remote SMTP service is running on a non-standard port" message is shown by a vulnerability scanner while scanning a Security Gateway

| Property | Value |
|----------|-------|
| Solution ID | sk174647 |
| Date Created | 2021-07-28 |
| Last Modified | 2023-07-25 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- "`Remote SMTP service is running on a non-standard port`" message is shown by a vulnerability scanner while scanning a Security Gateway

## Cause

The SMTP Security Server is running on the Security Gateway because:

1. The SMTP Security Server is enabled explicitly in the *$FWDIR/conf/fwauthd.conf* file on the Security Gateway (the line "`in.asmtpd`" is not commented out).  
   Example:  
   `25 fwssd in.asmtpd wait 0`
2. The Access Control policy contains a Service with Resource (SMTP Resource object) in at least one rule.

## Solution

This solution requires authentication. Please log in to view the full solution.

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