Channel dem
Four ways to reach person, from the same graph
The reminder dey go by SMS because people dey read dem within minutes. The story dey go by e-mail because e get space. The tap on shoulder dey go by push. The customer wey worth stamp go get something wey dem print and post. Which one message dey use na property of the node — no be separate tool wey you go buy, learn and reconcile.
Dem render am from your document into the shape wey e-mail clients really want: tables, inlined CSS, no flex or grid for Outlook, dark-mode-safe colours and plain-text alternative wey dem generate for you.
One-click unsubscribe with List-Unsubscribe-Post, as RFC 8058 and now the big inbox providers dey require. And size check at publish, because Gmail dey clip at around 102 KB and clipped message go hide your unsubscribe link for the bottom of the part wey nobody dey see.
SMS
For the message wey person must read today: the appointment tomorrow, the offer wey go end on Sunday. Short, and people dey read am almost immediately, na exactly why you no suppose overuse am.
Dem dey count segments before dem send am. GSM-7 give you 160 characters; one emoji, one curly quote or one Polish mark wey no dey inside extension table go change di whole message to UCS-2 wey na 70 characters per segment, and di message wey you think say na one go come cost three. You go see dat number before you send, no be for invoice. STOP and di oda words like am dey honoured inside di service, because for most markets na law dem take am, no be feature.
Push am
Web Push wey get VAPID keys and RFC 8291 payload encryption, iOS through APNs, Android through FCM, and one in-app lane through socket for apps wey don already connect.
Di device registry get one row per endpoint per app per contact, and 410 or 404 from di provider go clear di row sharp sharp. Tokens wey nobody never prune go quietly spoil your delivery rate and make every measurement wey come after am wrong — na why di pruning matter pass di sending.
Printed letters
Di same creative document, render through print CSS enter PDF, address am and post am. For di anniversary, di high-value customer, di audience wey no dey read e-mail — and for di time when every oda person competitor dey inside inbox and you dey for doormat.
Na ordinary node e be. Di same waits dey in front of am, di same goal check fit cancel am, and di same consent ledger dey control whether you fit send am at all.
Carry yu own sending come
ClickSomo no dey run mail server at all, dem no want am and dem no go ever want am. You go connect one sender identity: one address wey tie to one way of sending am. Dat na either your own SMTP mailbox — including di ones your hosting already give you — or one provider wey you don already pay for, like SendGrid.
One project fit hold plenty. One mailbox for transactional mail, one provider for bulk, and one funnel node go pick which one e go use. Each identity carry im own rate cap, because small mailbox get low cap and to hammer am go make dem suspend di account, no be just rate-limit am.
One rule dey wey di system no go let you break: bulk traffic no dey ever comot on top domain wey dem flag transactional. If sign-in mail and receipts dey go out on one domain, nobody fit create bulk identity there. One bad campaign — whether na you or anybody — no suppose fit take down your own password resets.
Di result, wey na di main point: no bundled per-message cost, because nothing dey to bundle. Your reputation na only your own, dem no pool am with strangers.
- 1Address and hostHost, port, credentials, TLS mode and one rate cap wey you set.
- 2DNS don checkDi SPF, DKIM and DMARC records wey you need, den verify am — and check am again later, because records dey change when somebody go tidy one zone file.
- 3Return pathPoint am to one real mailbox wey dey receive, parse and classify bounce notices. SMTP no get webhook; na so small sender fit get real bounce handling.
- !Dem reject amOne bulk identity on top domain wey dem mark transactional. One line of policy today, one big wahala wey you no fit fix later.
Yu addressYu reputationNo extra charge

Four ways to enter. Di message go pick di one wey fit am.
Di part wey really dey useful
One delivery vocabulary, no matter which provider carry di message
Every provider dey report delivery different. SendGrid dey post signed JSON webhooks. One plain SMTP account no post anything at all, and im bounces dey come as e-mail wey dem write make human read am. Dem normalise di two of dem into di same eleven events before anything wey dey upstream see dem.
- 1queued · sent · delivered · deferredDi message progress, in words wey mean di same thing on top every provider.
- 2open · clickWith di URL for one click. Dem dey separate bot traffic for reporting, dem no dey hide am.
- 3soft_bounce · hard_bounce · complaintOne hard bounce and one complaint both go write one suppression, permanent.
- 4unsubscribe · failedDem go honour one unsubscribe everywhere at once, including inside di sending service.
- iWhy e dey importantIf you switch provider, nothing go change upstream — no be one report, no be one segment, no be one funnel condition. Di dialect stop for door.
Di same events for SMS and push
Wetin dey happen when sending no go well
Retries dey use exponential backoff and dem dey end inside dead-letter queue, no be inside silence. 4xx from provider dem go retry am; 5xx wey mean say di message no acceptable, dem no go retry am, because to retry am forever na how account go get suspend.
Di sending service sef dey enforce suppression just like here, so if you change provider e no go bring back any address wey you don suppress two years ago. And per-identity concurrency limits mean say big campaign go pace imsef against small mailbox instead of to suffocate am inside di first thirty seconds.
Wetin we no build on purpose: no mail transfer agent of our own, no dedicated IP pools, no warm-up scheduler, no feedback-loop enrolment. All dat one na real work and e belong to di party wey im reputation dey on top of di line — your provider, or your own mailbox. To build dem here go mean say we go pool your sending with strangers, and dat one na di exact thing dis design no gree do.