SMTP Error Messages

From visp.net NOC

When email is unable to be delivered to its destination address on our systems, you will receive an error message either in the form of a bounce-back or message in your email server log or client program.

Please locate the error code received in the list below for further information as to why your message was blocked and what can be done to remedy the situation.

Contents

SPAM-SP error

The IP address where your message originated from is currently blocked. This address space either currently is or once was allocated to a service provider who has hosted numerous spammers and has either bounced our spam complaints (in violation of Internet standards), or responded with a refusal to terminate spammer accounts.

If you are a customer of this service provider, please copy the entire email error message to their support department so they can follow up with our abuse team.

If you are a staff member of the service provider in question and you were either recently assigned this IP address space or your email abuse policies have changed to now handle spam complaints and terminate spammer accounts, please open a case with our abuse team by contacting us by telephone at 541-955-6900 option 4. We will also need to know the IP address from which the rejected email originated (provided in the bounce message).

SPAM-SS error

The IP address where your message originated from is currently blocked. This address space either currently is or once was allocated to a customer who participated in a tactic known as "snowshoe spamming", where spam is emitted from many different IP addresses generally terminating on one physical host in an attempt to bypass per-host filtering.

If you were recently assigned this IP address space from your service provider or regional internet registry, please open a case with our abuse team by contacting us by telephone at 541-955-6900 option 4. We will also need to know the IP address from which the rejected email originated (provided in the bounce message) and the size of your assigned IP address block (in CIDR format).

SPAM-DM error

The IP address where your message originated from is currently blocked. This address space either currently is or once was allocated to a party who participated sending direct marketing email messages to members of our customer base who had not opted to receive such mailings. This includes complaints generated by not using confirmed opt-in methods for mailing lists.

If you were recently assigned this IP address space from your service provider or regional internet registry, please open a case with our abuse team by contacting us by telephone at 541-955-6900 option 4. We will also need to know the IP address from which the rejected email originated (provided in the bounce message).

If you are a direct marketing mailer, please note that you MUST have policies in place to only market to subscribers who have directly opted to receive your mailings AND YOU ALSO MUST USE A CONFIRMED OPT-IN METHOD. If this is now the case, please open a case with our abuse team by contacting us by telephone at 541-955-6900 option 4. We will need to know the IP address from which the rejected email originated (provided in the bounce message).

SPAM-CH error

The IP address where your message originated from is currently blocked. This address has at some point sent spam or phishing email messages to members of our customer base.

It is believed that the system sending these messages is either itself infected with a spam-sending virus, trojan, or proxy server or is a NAT router for a computer infected with such a piece of malware.

If this system is a NAT router, you should refer to your router manufacturer's documentation as to how to first identify which system behind it may be infected, then as to how to block outbound port 25 (SMTP) access except to your designated email servers. Limiting port 25 (SMTP) access will ensure that this sort of malicious software is unable to send email directly to remote email servers.

Once this issue has been resolved, please open a case with our abuse team by contacting us by telephone at 541-955-6900 option 4. We will need to know the IP address from which the rejected email originated (provided in the bounce message).