diff --git a/.env.template b/.env.template
index 483338c..44a4557 100644
--- a/.env.template
+++ b/.env.template
@@ -12,11 +12,14 @@ BRAND_LOGO=
 INDEXER_RELAYS=purplepag.es,relay.damus.io,relay.nostr.band
 DEFAULT_RELAYS=relay.damus.io,nos.lol
 SEARCH_RELAYS=relay.nostr.band
+SMTP_HOST=
+SMTP_PORT=
+SMTP_USER=
+SMTP_PASSWORD=
+SMTP_FROM=
 # CORS_ORIGIN must be set to the exact origin your browser client runs on
 # (e.g. https://app.example.com). There is no wildcard fallback — the server
 # will refuse to start without it.
 CORS_ORIGIN=
-POSTMARK_API_KEY=
-POSTMARK_SENDER_ADDRESS=
 PORT=4738
 DATA_DIR=./data
diff --git a/README.md b/README.md
index 4f6f479..51c9fa7 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Flotilla ──HTTP──▶ Mailship (PUT /subscription/email)
                            UUID in path      ├── fetch event from relay
                            is the auth       ├── store in SQLite (dedup)
                                              │
-                                        cron fires ──▶ render digest ──▶ Postmark ──▶ email
+                                        cron fires ──▶ render digest ──▶ SMTP ──▶ email
 ```
 
 ## Configuration
@@ -30,12 +30,15 @@ Flotilla ──HTTP──▶ Mailship (PUT /subscription/email)
 | `MAILSHIP_NAME` | ✓ | Name of this Mailship instance |
 | `MAILSHIP_URL` | ✓ | Public URL of this instance |
 | `BASE_URL` | ✓ | Base URL for callback URLs (same as MAILSHIP_URL typically) |
+| `SMTP_HOST` | ✓ | SMTP server hostname |
+| `SMTP_PORT` | ✓ | SMTP server port |
+| `SMTP_USER` | ✓ | SMTP username |
+| `SMTP_PASSWORD` | ✓ | SMTP password |
+| `SMTP_FROM` | ✓ | From email address for outgoing mail |
 | `EVENT_VIEWER_URL` | | Base URL of the app event links open in (defaults to Flotilla at `https://app.flotilla.social`, or anything handling the same `/spaces/<relay>/<hash>` and `/<nevent>` URL shapes) |
 | `BRAND_NAME` | | Name used in email branding (default: `Flotilla`) |
 | `BRAND_ACCENT` | | Accent color string used in email branding (default: `#7161FF`) |
 | `BRAND_LOGO` | | URL of the logo image shown in the email header. Defaults to `<EVENT_VIEWER_URL>/logo.png`; if empty/unset, a colored brand name is shown instead |
-| `POSTMARK_API_KEY` | ✓ | Postmark API key for sending emails |
-| `POSTMARK_SENDER_ADDRESS` | ✓ | Verified sender email in Postmark |
 | `DEFAULT_RELAYS` | ✓ | Comma-separated list of default relays |
 | `INDEXER_RELAYS` | ✓ | Comma-separated list of indexer relays |
 | `SEARCH_RELAYS` | ✓ | Comma-separated list of search relays |
diff --git a/docker-compose.yml b/docker-compose.yml
index 1d172dd..10eac1b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,8 +10,11 @@ services:
       - MAILSHIP_NAME=${MAILSHIP_NAME:-Mailship}
       - MAILSHIP_URL=${MAILSHIP_URL:?required}
       - BASE_URL=${BASE_URL:?required}
-      - POSTMARK_API_KEY=${POSTMARK_API_KEY:?required}
-      - POSTMARK_SENDER_ADDRESS=${POSTMARK_SENDER_ADDRESS:?required}
+      - SMTP_HOST=${SMTP_HOST:?required}
+      - SMTP_PORT=${SMTP_PORT:?required}
+      - SMTP_USER=${SMTP_USER:?required}
+      - SMTP_PASSWORD=${SMTP_PASSWORD:?required}
+      - SMTP_FROM=${SMTP_FROM:?required}
       - DEFAULT_RELAYS=${DEFAULT_RELAYS:-wss://relay.damus.io,wss://relay.primal.net}
       - INDEXER_RELAYS=${INDEXER_RELAYS:-wss://purplepag.es,wss://relay.damus.io}
       - SEARCH_RELAYS=${SEARCH_RELAYS:-wss://relay.nostr.band}
diff --git a/src/alert.ts b/src/alert.ts
index 62f5bf8..c61586f 100644
--- a/src/alert.ts
+++ b/src/alert.ts
@@ -1,5 +1,3 @@
-
-
 export type Subscription = {
   id: string
   key: string
diff --git a/src/digest.ts b/src/digest.ts
index daccaf2..334c00b 100644
--- a/src/digest.ts
+++ b/src/digest.ts
@@ -18,7 +18,6 @@ import {
   displayPubkey,
   getTagValue,
 } from '@welshman/util'
-
 import { displayDuration, createElement } from './util.js'
 import type { Subscription } from './alert.js'
 import { sendDigest } from './mailer.js'
diff --git a/test/integration.sh b/test/integration.sh
index 7d43141..d48122a 100755
--- a/test/integration.sh
+++ b/test/integration.sh
@@ -46,8 +46,11 @@ export MAILSHIP_SECRET="$SECRET"
 export MAILSHIP_NAME="Mailship Test"
 export MAILSHIP_URL="$BASE_URL"
 export BASE_URL="$BASE_URL"
-export POSTMARK_API_KEY="test"
-export POSTMARK_SENDER_ADDRESS="test@test.com"
+export SMTP_HOST="localhost"
+export SMTP_PORT="587"
+export SMTP_USER="test@test.com"
+export SMTP_PASSWORD="test"
+export SMTP_FROM="test@test.com"
 export DEFAULT_RELAYS="wss://relay.damus.io"
 export INDEXER_RELAYS="wss://purplepag.es"
 export SEARCH_RELAYS="wss://relay.nostr.band"