IP blacklisted

Hi Ignacio,

Thank you for reaching out to Sophos Community.

Kindly provide the IP's domain details and share the logs showing the error for better analysis.

Hi Erick,

We are experiencing this issue with several more IPs. Could I provide you with the full list so you can assist me?

Here's the information for a recent example with this specific IP:

From: Machinio Lisa lisa@machinio.com
Recipient: marianne@furrow.com
Response: smtp;550 Sophos Anti-Spam Engine has blocked this email because the sender IP address is blacklisted.

Hi Ignacio,

Kindly share the following

• Full Log
• .eml sample of the email being rejected 
• Affected domain. 

Hi,

As I mentioned we are an ESP and we have a lot of IPs listed by you, I'll give you one example of them but this is not the only domain or IP seeing this issue.

Full log and .eml sample attached.

Affected domain of the example: bve.vc

IP: 104.245.209.237

email.emlfull-log.rtf

Hello,

The .eml file you shared seems incorrect; please share a new one.

Also, it seems the blocks are happening at the configuration level (so the users are blocking the emails) rather than Sophos blocking your IPs, but Labs will be able to confirm.

Regards,

Hello there, 

Labs have confirmed that they aren’t blocking the IP/Domain; the block is at the customer product configuration. 

Here’s a reference to the UTM/Firewall/SFOS docs that highlight this fact:
https://support.sophos.com/support/s/article/KB-000038662?language=en_US

Regards,