diff --git a/lib/postmark/postmark.go b/lib/postmark/postmark.go
deleted file mode 100644
index 92d31fa..0000000
--- a/lib/postmark/postmark.go
+++ /dev/null
@@ -1,71 +0,0 @@
-package postmark
-
-import (
-	"context"
-	"fmt"
-	"time"
-
-	"github.com/wearemojo/mojo-public-go/lib/cher"
-	"github.com/wearemojo/mojo-public-go/lib/gerrors"
-	"github.com/wearemojo/mojo-public-go/lib/httpclient"
-	"github.com/wearemojo/mojo-public-go/lib/jsonclient"
-	"github.com/wearemojo/mojo-public-go/lib/merr"
-	"github.com/wearemojo/mojo-public-go/lib/secret"
-)
-
-const baseURL = "https://api.postmarkapp.com"
-
-//nolint:tagliatelle // postmark uses title case
-type Response struct {
-	To          string    `json:"To"`
-	SubmittedAt time.Time `json:"SubmittedAt"`
-	MessageID   string    `json:"MessageID"`
-	ErrorCode   int       `json:"ErrorCode"`
-	Message     string    `json:"Message"`
-}
-
-//nolint:tagliatelle // postmark uses title case
-type EmailWithTemplate struct {
-	MessageStream string            `json:"MessageStream"`
-	From          string            `json:"From"`
-	To            string            `json:"To"`
-	TemplateAlias string            `json:"TemplateAlias"`
-	TemplateModel map[string]string `json:"TemplateModel"`
-}
-
-type Client struct {
-	client *jsonclient.Client
-}
-
-func NewClient(ctx context.Context, serverTokenSecretID string) (*Client, error) {
-	if _, err := secret.Get(ctx, serverTokenSecretID); err != nil {
-		return nil, err
-	}
-
-	return &Client{
-		client: jsonclient.NewClient(
-			baseURL,
-			httpclient.NewClient(5*time.Second, roundTripper{serverTokenSecretID}),
-		),
-	}, nil
-}
-
-func (c *Client) SendWithTemplate(ctx context.Context, req *EmailWithTemplate) (res *Response, err error) {
-	err = c.client.Do(ctx, "POST", "/email/withTemplate", nil, req, &res)
-	if cerr, ok := gerrors.As[cher.E](err); ok {
-		cerr.Code = fmt.Sprintf("postmark_%s", cerr.Code)
-		return nil, cerr
-	} else if err != nil {
-		return
-	}
-
-	if res.ErrorCode != 0 {
-		err = merr.New(ctx, "postmark_error", merr.M{
-			"error_code": res.ErrorCode,
-			"message":    res.Message,
-			"message_id": res.MessageID,
-		})
-	}
-
-	return
-}
diff --git a/lib/postmark/roundtripper.go b/lib/postmark/roundtripper.go
deleted file mode 100644
index f920fb8..0000000
--- a/lib/postmark/roundtripper.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package postmark
-
-import (
-	"net/http"
-
-	"github.com/wearemojo/mojo-public-go/lib/secret"
-)
-
-type roundTripper struct {
-	SecretID string
-}
-
-func (r roundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	ctx := req.Context()
-	req = req.Clone(ctx)
-
-	serverToken, err := secret.Get(ctx, r.SecretID)
-	if err != nil {
-		return nil, err
-	}
-
-	if req.Header == nil {
-		req.Header = http.Header{}
-	}
-
-	req.Header.Set("X-Postmark-Server-Token", serverToken)
-
-	return http.DefaultTransport.RoundTrip(req)
-}