Business email is one of the most important communication channels inside an organization. Invoices, proposals, customer conversations and internal information all pass through mailboxes, which means email security must go beyond basic spam filtering.
Use strong account security
Every employee should use a unique password. Reusing the same password across different services can turn an unrelated data breach into a business email compromise.
Recognize phishing attempts
Fake login pages, urgent payment requests and impersonation messages are common attack methods. Users should carefully examine sender addresses, link destinations and context.
Configure domain authentication
SPF, DKIM and DMARC help protect company domains from unauthorized use and allow receiving systems to validate message sources.
Inspect malicious content
Attachments and links should not be trusted solely because of their file extension or appearance. Suspicious content should be analyzed and quarantined when necessary.
Monitor login attempts
Repeated failed logins from different IP addresses can indicate password-guessing activity. Detecting and blocking suspicious access attempts is an important part of mailbox protection.
MX1Mail customers can review domain-specific security information through their Security Center.