Email and sending-domain checks

Open Verification tools. Email verification checks address syntax and the recipient domain's MX records, not guaranteed mailbox ownership or deliverability. Invalid results are red. For sending-domain verification, follow the displayed DNS record instructions, wait for propagation, and verify; remove obsolete entries with Delete.

AeroMailer interface: Verify email addresses and sending domains
Sample-data app screenshot. Select the image to view it at full size; your accounts and content will differ.

SMTP tester

Select Test Now, enter temporary credentials, and review the result. This tool is separate from saving an account. Accounts can be added directly through Add Account without an emailed verification code; the optional account Test Connection is connection-only.

Email Generator

Choose a count and domain, optionally verify, and generate. Export TXT/CSV or move appropriate data to a contact list. Generated addresses and syntax/MX results do not prove a real mailbox, ownership, or permission. Do not use generated addresses for unsolicited campaigns.