This is second time I am communicating my issue through the forum as it appears the support mail is not very useful for prompt communication.
SMTP services for two mails in our corporate mail list had been blocked infinitely with no option for mail admin to unblock the SMTP services.
When I tried to discover the reason, it appeared that one address had been blocked for sending 8 mails with same subject within 12 minutes, and the other for 2 or 3 mails with the same subject.
With due respect to the ZOHO's policy directed at eliminating spam and raising reliability of the service, we have to state that such policy often unreasonably limits client's ability to effectively utilize e-mail communication services, making the client to seek for alternative service providers.
I hereby ensure you that no spamming activity is generated by our corporate mails, the mails sent with the same subject was an ordinary "thank you" letter to an event participants.
We would appreciate unblocking the two blocked SMTPs and, for our further convenience, either reviewing the policy for the mails within our corporate e-mail list, or, at least, providing the admin an opportunity to unblock the blocked SMTPs manually.
We would also appreciate a more clear "game rules", to try to better match to the requirements imposed by ZOHO mail service. We cannot afford frequent blocking of our mail addresses for, as we think, no particular reason, as it negatively impacts the effectiveness of our organization.