Atomic Email Autoresponder enables you to send autoresponder messages to incoming email that match certain criteria. You can create simple rules based on the subject or attachment and automatically send your reply (with optional attachments) either immediately or with a customizable delay. Atomic Email Autoresponder also supports sequential autoresponders that will sent the first reply immediately and then send one or more follow-up messages after a defined number of days. The program is good for basic autoresponder needs.