How to compare data retention policies across 138 Enterprise Email plans?

138 Enterprise Email provides configurable data retention settings, but specific retention periods vary by plan tier and contractual terms. For accurate comparison, enterprises should: 1) Review the service agreement for retention clauses, noting differences in storage duration, archiving options, and compliance features (e.g., alignment with China’s multi-level protection scheme requirements); 2) Confirm whether retention applies to active mailboxes, deleted items, or backups, as policies may differ; 3) Evaluate plan scalability—higher tiers often support extended retention or legal hold capabilities for regulated industries like finance or cross-border trade. Note: Official documentation (e.g., contracts or admin portals) overrides general descriptions. For precise details, contact 138’s direct support via kf@138.gz.cn with your domain and plan type to avoid assumptions. Always validate retention needs against your industry’s data governance rules.