mailservrIs mailservr a subscription service?
Plus and Max are annual auto-renewing subscriptions. You can cancel renewal at any time and retain paid access through the current billing period.
Frequently asked questions
Everything users ask most about mailservr plans, aliases, inbox workflows, and developer automation.
Plans and billing
Do you offer a free plan?
Yes. Free includes five shared-domain aliases, one active alias at a time, inbound mail, seven days of visible history, and 100 MB of attachment storage. Once that storage is full, new attachments are discarded while email content and HTML remain available.
What are the current alias limits per plan?
Free supports 5 aliases with 1 active at a time, Plus supports 30 aliases with 15 active for receiving at a time, and Max supports 500 aliases with 200 active for receiving.
How many outbound emails can I send?
Plus includes 200 outbound emails per month and Max includes 2,000. New messages, replies, forwards, and scheduled delivery all count toward the monthly allowance. Free is inbound-only.
Aliases and inbox
Can I send and reply from aliases?
Plus, Max, and Unlimited accounts can compose new emails, reply, reply-all, and forward directly from their aliases in the dashboard.
Can I schedule an email for later?
Yes. Plus, Max, and Unlimited accounts can schedule new mail, replies, reply-all messages, and forwards. Queued messages can be canceled before delivery.
Can I search and filter inbox conversations?
Yes. mailservr supports full-text search across visible message fields plus filters for unread, starred, address-specific, and date-range views.
Can I block senders for a specific alias?
Yes. You can block senders per address, which helps reduce repeated spam without changing unrelated aliases.
What is the maximum attachment size?
Each outbound attachment is limited to 30 MiB raw, and all attachments in one message must fit Resend's 40 MiB Base64 aggregate limit. Retained storage is enforced separately by plan.
Do you support custom domains?
Custom domain support is planned but not generally available yet. Today you can create aliases on shared domains provided in your account.
API and automation
Does mailservr provide API access?
Plus, Max, and Unlimited accounts can create API keys from settings and authenticate requests with an Authorization Bearer token.
How many API keys can I create?
Plus includes 1 API key, Max includes up to 10, and Unlimited has no product cap.
Are webhooks available?
Max includes up to 5 outbound webhook endpoints, while Unlimited has no product cap. Events include email.received, email.sent, and thread.created.
Need implementation details?
For API and event payload reference, read the webhook docs and technical guides.