Postmaster
Information for email administrators and operators exchanging mail with InteSys servers.
Contacts
Abuse reports: [email protected]. Technical mail-delivery issues: [email protected]. For reports, prefer the abuse form, which collects the information we need.
Sending policy
Our customers may send only solicited mail, from authenticated domains (SPF, DKIM and DMARC) with a working unsubscribe. Unsolicited bulk mail breaches our terms of use and leads to suspension of the service.
Reporting spam from our network
Received spam from an IP or domain hosted by InteSys? Send a report with the message's full headers; they are what lets us identify the sender.
Feedback loops
Providers running feedback loops (FBL) or ARF reports can send them to [email protected]. Complaints are processed and forwarded to the responsible customer.
Blocks and delivery problems
If you blocked one of our IPs, or your mail isn't reaching our servers, write to [email protected] with the IP, the full SMTP error and the time with timezone.
Blacklists
To check whether an IP or domain is listed on blacklists (RBL/DNSBL), use the free Multi-RBL tool, which queries hundreds of lists at once.
InteSys mail servers follow RFC 5321 and RFC 2142 and accept mail for abuse@ and postmaster@.