I’ve now had four tickets with InMotion Hosting for the exact same issue: outbound email being blocked by MailChannels with the error 550 5.7.1 [CS] Message blocked. This is a standard outbound reputation block that requires the hosting provider to submit TXIDs through the MailChannels outbound partner console.
Despite providing the TXIDs multiple times, InMotion never once performed the required action. Instead, support repeatedly did the wrong thing—submitting “Not Spam” on the inbound side, which has absolutely no effect on outbound reputation. They then closed my tickets as “Solved,” even though nothing was solved.
Across four tickets, the pattern was identical:
No outbound TXID submission
No escalation to Systems Administration
Vague, copy‑and‑paste replies
Incorrect inbound-only actions
Tickets closed prematurely, making them read‑only
Forced to start over each time with a new ticket
This has cost me days of downtime, lost business, and endless back‑and‑forth explaining the same issue to new agents who clearly aren’t trained on MailChannels or outbound filtering at all.
Support is friendly, but friendliness doesn’t fix broken systems. InMotion’s support workflow is fundamentally flawed: Tier 1 agents don’t understand the problem, Team Leads avoid escalation, and the people who can fix it are never involved.
If your business depends on reliable outbound email or competent technical escalation, look elsewhere. InMotion Hosting has demonstrated—repeatedly—that they cannot handle even basic MailChannels outbound issues, and they will close your tickets without resolving them.
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