Practical guidance for securing hosted email accounts, investigating mailbox compromise, forwarding rules, spoofing, and mail delivery problems.
If expected messages disappear after a suspected mailbox compromise, do not assume they were never sent or that DNS is the cause. Mail can be moved or hidden by a mailbox rule, filtered into another folder, quarantined by the provider, rejected during delivery or sent to a different address. Check the mailbox first, then ask…
A compromised business mailbox can expose customer or supplier information, send convincing payment scams and disrupt normal work. Treat it as both an account-security issue and a business incident. Tell the person responsible for IT or security promptly, and coordinate changes so evidence is preserved and business services are not interrupted unnecessarily. Protect payments immediately…
An email that appears to come from you does not always mean someone signed in to your mailbox. The message may have been sent from a compromised account, forged to display your address, or sent from a domain that looks almost like yours. These situations can look similar to recipients, but they require different checks….
A compromised email account can expose private messages, hide security alerts, send scams or help an attacker reset passwords elsewhere. The right recovery steps depend on who hosts the mailbox. This guide focuses on email addresses at your own domain, such as name@yourcompany.com, when the mailbox is managed by a web host or mail administrator….
HestiaCP can manage mail domains and mailboxes on a server, but the person who owns a mailbox may not administer the server itself. If a Hestia-hosted address is sending spam or exposing incoming mail, reset its mailbox password, inspect Hestia’s account-level routing options, and involve the server administrator for log review or active-session response. Make…
A compromised mailbox in Plesk can leak incoming messages, send spam, or be used to impersonate your business. Changing the password matters, but check Plesk’s forwarding settings as well, then have the hosting provider review server activity if the problem continues. These steps apply to mail hosted by Plesk; a mail app such as Outlook…