UPDATE: Our mail server reputation was elevated to “Neutral,” which means that the problems outlined below should resolve themselves.
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A very small amount of PCSDesk e-mail customers are experiencing issues sending e-mail to certain recipients that use reputation-based spam scoring to filter e-mail. The error that these senders are receiving look something like this:
Failed Recipient: (e-mail recipient)
Reason: Remote host said: 554 Your access to this mail system has been rejected due to the sending MTA’s poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.
This condition can happen when one user experiences an infection that sends out spam messages and reputation services (like Cisco’s SenderBase) picks up on this behavior and gives the outgoing mail server a “poor” reputation.
This reputation scoring eventually clears itself, but that doesn’t help you in getting your work done. There are two ways to get around this problem:
- You can send your e-mail via a personal account (like Gmail) since reputation services do not monitor activity from “big” e-mail providers.
- You can forward the bounced email to support [at] pcsdesk.com and we will send instructions to the party that is blocking your e-mails on how to add your company to their “whitelist” so their spam filters will allow your traffic.
In closing, PCSDesk has made sure that our mail servers are compliant and not listed on any spam blacklists. We are monitoring this problem with the reputation services and look forward to a quick resolution.
