Can I send that with PostShiba?
Most of the time, yes. Here is what you can build and send, and the few things we turn away.
Yes, you can.
Transactional, marketing, and inbound email, for your own app or for your customers.
Transactional email
-
Can I send receipts, password resets, and sign-in links?
Yes. Put them on a transactional cluster and send over REST, SMTP, or HTTP inject.
-
Can I send from WordPress, Ghost, or any app that speaks SMTP?
Yes. Point the app's SMTP settings at your cluster.
-
Can I design a message once and reuse it?
Yes. Build a template in the editor, then send it with Liquid variables.
-
Can I run PostShiba next to my current provider?
Yes. Send a small share of traffic through us and grow it as delivery holds up.
Marketing email
-
Can PostShiba handle unsubscribes for me?
Yes. Marketing clusters add one-click unsubscribe and stop later sends to that address.
-
Can I keep bounced and complaining addresses off my list?
Yes. Bounces and spam reports go on the suppression list, and future sends skip them.
Platforms and agencies
-
Can I send from my customers' own domains?
Yes. Give each customer a tenant with its own domains, credentials, and suppressions.
-
Can I build my own email product on PostShiba?
Yes. Bento runs on PostShiba, and you can build the same way.
-
Can one customer's problem stay with that customer?
Yes. When we can, we pause one domain or tenant, not your whole account.
Receiving email
-
Can I receive email at my own domain?
Yes. Create an inbox, and each message can POST to your webhook or forward on.
-
Can I build a support desk on PostShiba?
Yes. Receive customer mail, keep each conversation together, and send replies.
-
Can I give an AI agent its own inbox?
Yes. The agent gets a real address, signed webhooks, and replies you approve.
Getting started
-
Can I test before my account is approved?
Yes. Send to your own team while we review your account.
-
Can I move from SendGrid without rewriting my webhooks?
Yes. Delivery events still arrive as SendGrid-style JSON.
-
Can I set it up from my AI assistant?
Yes. Connect the MCP server with the same API key you use for REST.
-
Can I stop fake signups before I email them?
Yes. ShieldShiba is a free captcha that checks the email address too.
No, not on PostShiba.
These put every sender on the network at risk, so we pause them when we find them.
Your list
-
Can I send to a list I bought, rented, or scraped?
No. Send only to people who gave you permission.
-
Can I send cold outreach to people who never signed up?
No. Every recipient must have asked to hear from you.
-
Can I add contacts found through enrichment or appending?
No. Collect addresses from the people themselves.
Your content
-
Can I send phishing, malware, or mail that impersonates someone?
No. We pause the sender as soon as we find it.
-
Can I send content that is deceptive, hateful, harassing, or explicit?
No. That includes anything unlawful or harmful to minors.
-
Can I send health records, card numbers, or other sensitive data?
No, unless we agree to it in writing first.
Your business
-
Can I promote gambling, adult dating, or unlicensed pharmacy?
No. These carry legal and deliverability risk we do not take on.
-
Can I run MLM, list brokering, credit repair, or get-rich-quick offers?
No. The same goes for lead generation built on bought data.
-
Can I promote crypto or token schemes?
No, not speculative or deceptive ones.
How you send
-
Can I rotate domains or senders to get past spam filters?
No. Send from domains you own under a name recipients know.
-
Can I route mail through PostShiba to get around another provider's rules?
No. We do not clean, warm, or bridge traffic for that purpose.
-
Can I email customers before my account is approved?
No. Until approval, you can send to your own team only.
This page is a summary. The full rules are in the Acceptable Use Policy. To report mail that breaks them, report abuse.
Not sure if yours is a yes?
Tell us what you plan to send. We review every account by hand before it can send to customers.