Postmaster - Contact us
Before contacting us, please read our advice and guidelines on how to proceed to resolve the most frequent problems.
Choose one topic/question:
- IP listed in RBL (blocked using rbl.mail.sys.intranet)
- IP without Reverse (cannot find your hostname)
- Sender restrictions (Client host rejected: UOL-MX-XXXXXX)
- Direct delivery blocked (Direct delivery not allowed from this range)
- Other question/problem