diff --git a/components/mailosaur/actions/create-email/create-email.mjs b/components/mailosaur/actions/create-email/create-email.mjs
new file mode 100644
index 0000000000000..b7b27a880dbcb
--- /dev/null
+++ b/components/mailosaur/actions/create-email/create-email.mjs
@@ -0,0 +1,74 @@
+import { ConfigurationError } from "@pipedream/platform";
+import mailosaur from "../../mailosaur.app.mjs";
+
+export default {
+  key: "mailosaur-create-email",
+  name: "Create and Send Email via Mailosaur",
+  description: "Sends an email through Mailosaur. [See the documentation](https://mailosaur.com/docs/api)",
+  version: "0.0.1",
+  type: "action",
+  props: {
+    mailosaur,
+    serverId: {
+      propDefinition: [
+        mailosaur,
+        "serverId",
+      ],
+    },
+    to: {
+      type: "string",
+      label: "To",
+      description: "The verified external email address to which the email should be sent.",
+    },
+    from: {
+      type: "string",
+      label: "From",
+      description: "Optionally overrides of the message's `from` address. This **must** be an address ending with `YOUR_SERVER.mailosaur.net`, such as `my-emails @a1bcdef2.mailosaur.net`.",
+      optional: true,
+    },
+    subject: {
+      type: "string",
+      label: "Subject",
+      description: "The subject line for an email.",
+    },
+    html: {
+      type: "object",
+      label: "HTML",
+      description: "An object with HTML properties. Please [see the documentation](https://mailosaur.com/docs/api#send-an-email) for more details.",
+      optional: true,
+    },
+    text: {
+      type: "object",
+      label: "Text",
+      description: "An object with Plain text properties. Please [see the documentation](https://mailosaur.com/docs/api#send-an-email) for more details.",
+      optional: true,
+    },
+    send: {
+      type: "boolean",
+      label: "Send",
+      description: "If `false`, the email will be created in your server, but will not be sent.",
+    },
+  },
+  async run({ $ }) {
+    if ((!!this.send) && (!this.html && !this.text)) {
+      throw new ConfigurationError("Please provide either HTML or plain text content.");
+    }
+
+    const {
+      mailosaur,
+      serverId,
+      ...data
+    } = this;
+
+    const response = await mailosaur.sendEmail({
+      $,
+      params: {
+        server: serverId,
+      },
+      data,
+    });
+
+    $.export("$summary", `Email sent successfully to ${this.to}`);
+    return response;
+  },
+};
diff --git a/components/mailosaur/actions/delete-email/delete-email.mjs b/components/mailosaur/actions/delete-email/delete-email.mjs
new file mode 100644
index 0000000000000..8cf762ac3ba78
--- /dev/null
+++ b/components/mailosaur/actions/delete-email/delete-email.mjs
@@ -0,0 +1,37 @@
+import mailosaur from "../../mailosaur.app.mjs";
+
+export default {
+  key: "mailosaur-delete-email",
+  name: "Delete Email",
+  description: "Deletes an email from a Mailosaur server using its email ID. [See the documentation](https://mailosaur.com/docs/api)",
+  version: "0.0.1",
+  type: "action",
+  props: {
+    mailosaur,
+    serverId: {
+      propDefinition: [
+        mailosaur,
+        "serverId",
+      ],
+    },
+    emailId: {
+      propDefinition: [
+        mailosaur,
+        "emailId",
+        ({ serverId }) => ({
+          serverId,
+        }),
+      ],
+    },
+  },
+  async run({ $ }) {
+    await this.mailosaur.deleteEmail({
+      $,
+      emailId: this.emailId,
+    });
+    $.export("$summary", `Successfully deleted email with ID ${this.emailId}`);
+    return {
+      emailId: this.emailId,
+    };
+  },
+};
diff --git a/components/mailosaur/actions/search-email/search-email.mjs b/components/mailosaur/actions/search-email/search-email.mjs
new file mode 100644
index 0000000000000..51efd8e100f1b
--- /dev/null
+++ b/components/mailosaur/actions/search-email/search-email.mjs
@@ -0,0 +1,98 @@
+import { MATCH_OPTIONS } from "../../common/constants.mjs";
+import mailosaur from "../../mailosaur.app.mjs";
+
+export default {
+  key: "mailosaur-search-email",
+  name: "Search Email",
+  description: "Search for received emails in a server matching specified criteria. [See the documentation](https://mailosaur.com/docs/api/#search-for-messages)",
+  version: "0.0.1",
+  type: "action",
+  props: {
+    mailosaur,
+    serverId: {
+      propDefinition: [
+        mailosaur,
+        "serverId",
+      ],
+    },
+    receiveAfter: {
+      type: "string",
+      label: "Receive After",
+      description:
+            "Limits results to only messages received after this date/time.",
+      optional: true,
+    },
+    page: {
+      type: "integer",
+      label: "Page",
+      description: "Used in conjunction with `itemsPerPage` to support pagination.",
+      optional: true,
+    },
+    itemsPerPage: {
+      type: "integer",
+      label: "Items Per Page",
+      description:
+            "A limit on the number of results to be returned per page. Can be set between 1 and 1000 items, default is 50.",
+      optional: true,
+    },
+    dir: {
+      type: "string",
+      label: "Direction",
+      description: "Optionally limits results based on the direction (`Sent` or `Received`).",
+      optional: true,
+    },
+    sentFrom: {
+      type: "string",
+      label: "Sent From",
+      description: "The full email address from which the target message was sent.",
+      optional: true,
+    },
+    sentTo: {
+      type: "string",
+      label: "Sent To",
+      description: "The full email address to which the target message was sent.",
+      optional: true,
+    },
+    subject: {
+      type: "string",
+      label: "Subject",
+      description: "The value to seek within the target email's subject line.",
+      optional: true,
+    },
+    body: {
+      type: "string",
+      label: "Body",
+      description: "The value to seek within the target message's HTML or text body.",
+      optional: true,
+    },
+    match: {
+      type: "string",
+      label: "Match",
+      description: "If set to `ALL` (default), only results matching all criteria will be returned. If set to `ANY`, results matching any criteria will be returned.",
+      options: MATCH_OPTIONS,
+      optional: true,
+    },
+  },
+  async run({ $ }) {
+    const response = await this.mailosaur.searchMessages({
+      $,
+      params: {
+        server: this.serverId,
+        receiveAfter: this.receiveAfter,
+        page: this.page,
+        itemsPerPage: this.itemsPerPage,
+        dir: this.dir,
+      },
+      data: {
+        sentFrom: this.sentFrom,
+        sentTo: this.sentTo,
+        subject: this.subject,
+        body: this.body,
+        match: this.match,
+      },
+    });
+
+    $.export("$summary", `Successfully retrieved ${response.items.length} email(s) from server.`);
+    return response;
+  },
+};
diff --git a/components/mailosaur/common/constants.mjs b/components/mailosaur/common/constants.mjs
new file mode 100644
index 0000000000000..f396ecd4a72d9
--- /dev/null
+++ b/components/mailosaur/common/constants.mjs
@@ -0,0 +1,12 @@
+export const LIMIT = 1000;
+
+export const MATCH_OPTIONS = [
+  {
+    label: "All",
+    value: "ALL",
+  },
+  {
+    label: "Any",
+    value: "ANY",
+  },
+];
diff --git a/components/mailosaur/mailosaur.app.mjs b/components/mailosaur/mailosaur.app.mjs
index 5b7f545d2c022..68780a34084af 100644
--- a/components/mailosaur/mailosaur.app.mjs
+++ b/components/mailosaur/mailosaur.app.mjs
@@ -1,11 +1,123 @@
+import { axios } from "@pipedream/platform";
+import { LIMIT } from "./common/constants.mjs";
+
 export default {
   type: "app",
   app: "mailosaur",
-  propDefinitions: {},
+  propDefinitions: {
+    serverId: {
+      type: "string",
+      label: "Server ID",
+      description: "The identifier of the server from which the email should be sent.",
+      async options() {
+        const { items } = await this.listServers();
+
+        return items.map(({
+          id: value, name: label,
+        }) => ({
+          label,
+          value,
+        }));
+      },
+    },
+    emailId: {
+      type: "string",
+      label: "Server ID",
+      description: "The identifier of the server from which the email should be sent.",
+      async options({ serverId }) {
+        const { items } = await this.listMessages({
+          params: {
+            server: serverId,
+          },
+        });
+
+        return items.map(({
+          id: value, subject: label,
+        }) => ({
+          label,
+          value,
+        }));
+      },
+    },
+  },
   methods: {
-    // this.$auth contains connected account data
-    authKeys() {
-      console.log(Object.keys(this.$auth));
+    _baseUrl() {
+      return "https://mailosaur.com/api";
+    },
+    _auth() {
+      return {
+        username: "api",
+        password: `${this.$auth.api_key}`,
+      };
+    },
+    _makeRequest({
+      $ = this, path, ...opts
+    }) {
+      return axios($, {
+        url: this._baseUrl() + path,
+        auth: this._auth(),
+        ...opts,
+      });
+    },
+    listServers() {
+      return this._makeRequest({
+        path: "/servers",
+      });
+    },
+    listMessages(opts = {}) {
+      return this._makeRequest({
+        path: "/messages",
+        ...opts,
+      });
+    },
+    sendEmail(opts = {}) {
+      return this._makeRequest({
+        method: "POST",
+        path: "/messages",
+        ...opts,
+      });
+    },
+    searchMessages(opts = {}) {
+      return this._makeRequest({
+        method: "POST",
+        path: "/messages/search",
+        ...opts,
+      });
+    },
+    deleteEmail({
+      emailId, ...opts
+    }) {
+      return this._makeRequest({
+        method: "DELETE",
+        path: `/messages/${emailId}`,
+        ...opts,
+      });
+    },
+    async *paginate({
+      fn, params = {}, maxResults = null, ...opts
+    }) {
+      let hasMore = false;
+      let count = 0;
+      let page = 0;
+
+      do {
+        params.page = page++;
+        params.itemsPerPage = LIMIT;
+        const { items } = await fn({
+          params,
+          ...opts,
+        });
+        for (const d of items) {
+          yield d;
+
+          if (maxResults && ++count === maxResults) {
+            return count;
+          }
+        }
+
+        hasMore = items.length;
+
+      } while (hasMore);
     },
   },
-};
\ No newline at end of file
+};
diff --git a/components/mailosaur/package.json b/components/mailosaur/package.json
index e06b1c0211a94..766a53deebc63 100644
--- a/components/mailosaur/package.json
+++ b/components/mailosaur/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pipedream/mailosaur",
-  "version": "0.0.1",
+  "version": "0.1.0",
   "description": "Pipedream Mailosaur Components",
   "main": "mailosaur.app.mjs",
   "keywords": [
@@ -11,5 +11,8 @@
   "author": "Pipedream <support@pipedream.com> (https://pipedream.com/)",
   "publishConfig": {
     "access": "public"
+  },
+  "dependencies": {
+    "@pipedream/platform": "^3.0.3"
   }
-}
\ No newline at end of file
+}
diff --git a/components/mailosaur/sources/common/base.mjs b/components/mailosaur/sources/common/base.mjs
new file mode 100644
index 0000000000000..86977ce8825a2
--- /dev/null
+++ b/components/mailosaur/sources/common/base.mjs
@@ -0,0 +1,81 @@
+import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform";
+import mailosaur from "../../mailosaur.app.mjs";
+
+export default {
+  props: {
+    mailosaur,
+    db: "$.service.db",
+    timer: {
+      type: "$.interface.timer",
+      default: {
+        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
+      },
+    },
+    serverId: {
+      propDefinition: [
+        mailosaur,
+        "serverId",
+      ],
+    },
+  },
+  methods: {
+    _getLastDate() {
+      return this.db.get("lastDate") || 0;
+    },
+    _setLastDate(lastDate) {
+      this.db.set("lastDate", lastDate);
+    },
+    getData() {
+      return {};
+    },
+    dataValidation() {
+      return true;
+    },
+    getOtherOpts() {
+      return {};
+    },
+    async emitEvent(maxResults = false) {
+      const lastDate = this._getLastDate();
+
+      const otherOpts = this.getOtherOpts();
+      const response = this.mailosaur.paginate({
+        fn: this.getFunction(),
+        params: {
+          receivedAfter: lastDate,
+          server: this.serverId,
+        },
+        ...otherOpts,
+      });
+
+      let responseArray = [];
+      for await (const item of response) {
+        if (Date.parse(item.received) <= Date.parse(lastDate)) break;
+        responseArray.push(item);
+      }
+
+      if (responseArray.length) {
+        if (maxResults && (responseArray.length > maxResults)) {
+          responseArray.length = maxResults;
+        }
+        this._setLastDate(responseArray[0].received);
+      }
+
+      for (const item of responseArray.reverse()) {
+        this.$emit(item, {
+          id: item.id,
+          summary: this.getSummary(item),
+          ts: Date.parse(item.received),
+        });
+      }
+    },
+  },
+  hooks: {
+    async deploy() {
+      await this.emitEvent(25);
+    },
+  },
+  async run() {
+    await this.dataValidation();
+    await this.emitEvent();
+  },
+};
diff --git a/components/mailosaur/sources/new-email-matching-criteria/new-email-matching-criteria.mjs b/components/mailosaur/sources/new-email-matching-criteria/new-email-matching-criteria.mjs
new file mode 100644
index 0000000000000..9e5fac17b98cb
--- /dev/null
+++ b/components/mailosaur/sources/new-email-matching-criteria/new-email-matching-criteria.mjs
@@ -0,0 +1,74 @@
+import { ConfigurationError } from "@pipedream/platform";
+import { MATCH_OPTIONS } from "../../common/constants.mjs";
+import common from "../common/base.mjs";
+import sampleEmit from "./test-event.mjs";
+
+export default {
+  ...common,
+  key: "mailosaur-new-email-matching-criteria",
+  name: "New Email Matching Criteria",
+  description: "Emit new event when a message matching specific criteria is received. [See the documentation](https://mailosaur.com/docs/api#search-for-messages)",
+  version: "0.0.1",
+  type: "source",
+  dedupe: "unique",
+  props: {
+    ...common.props,
+    sentFrom: {
+      type: "string",
+      label: "Sent From",
+      description: "The full email address or phone number from which the target message was sent.",
+      optional: true,
+    },
+    sentTo: {
+      type: "string",
+      label: "Sent To",
+      description: "The full email address or phone number to which the target message was sent.",
+      optional: true,
+    },
+    subject: {
+      type: "string",
+      label: "Subject",
+      description: "The value to seek within the target email's subject line.",
+      optional: true,
+    },
+    body: {
+      type: "string",
+      label: "Body",
+      description: "The value to seek within the target message's HTML or text body.",
+      optional: true,
+    },
+    match: {
+      type: "string",
+      label: "Match",
+      description: "If set to `ALL` (default), then only results that match all specified criteria will be returned. If set to `ANY`, results that match any of the specified criteria will be returned.",
+      options: MATCH_OPTIONS,
+    },
+  },
+  methods: {
+    ...common.methods,
+    getOtherOpts() {
+      return {
+        data: {
+          sentFrom: this.sentFrom,
+          sentTo: this.sentTo,
+          subject: this.subject,
+          body: this.body,
+          match: this.match,
+        },
+      };
+    },
+    dataValidation() {
+      if (!this.sentFrom && !this.sentTo && !this.subject && !this.body) {
+        throw new ConfigurationError("Please provide at least one search criteria.");
+      }
+      return true;
+    },
+    getFunction() {
+      return this.mailosaur.searchMessages;
+    },
+    getSummary(item) {
+      return `New Message: ${item.subject}`;
+    },
+  },
+  sampleEmit,
+};
diff --git a/components/mailosaur/sources/new-email-matching-criteria/test-event.mjs b/components/mailosaur/sources/new-email-matching-criteria/test-event.mjs
new file mode 100644
index 0000000000000..2a4a1866c8b79
--- /dev/null
+++ b/components/mailosaur/sources/new-email-matching-criteria/test-event.mjs
@@ -0,0 +1,16 @@
+export default {
+  "id": "77061c9f-da47-4009-9f33-9715a3bbf00c",
+  "received": "2019-08-06T17:44:07.197781+00:00",
+  "type": "Email",
+  "subject": "Email subject line",
+  "from": [{
+    "name": "Acme",
+    "email": "noreply@example.com"
+  }],
+  "to": [{
+    "name": "Jane Doe",
+    "email": "janedoe@abc1234.mailosaur.net"
+  }],
+  "cc": [],
+  "bcc": []
+}
\ No newline at end of file
diff --git a/components/mailosaur/sources/new-message/new-message.mjs b/components/mailosaur/sources/new-message/new-message.mjs
new file mode 100644
index 0000000000000..2622687f8b9e8
--- /dev/null
+++ b/components/mailosaur/sources/new-message/new-message.mjs
@@ -0,0 +1,22 @@
+import common from "../common/base.mjs";
+import sampleEmit from "./test-event.mjs";
+
+export default {
+  ...common,
+  key: "mailosaur-new-message",
+  name: "New Message Received",
+  description: "Emit new event when a message is received in a specified Mailosaur inbox. [See the documentation](https://mailosaur.com/docs/api#list-all-messages)",
+  version: "0.0.1",
+  type: "source",
+  dedupe: "unique",
+  methods: {
+    ...common.methods,
+    getFunction() {
+      return this.mailosaur.listMessages;
+    },
+    getSummary(item) {
+      return `New Message: ${item.subject}`;
+    },
+  },
+  sampleEmit,
+};
diff --git a/components/mailosaur/sources/new-message/test-event.mjs b/components/mailosaur/sources/new-message/test-event.mjs
new file mode 100644
index 0000000000000..2a4a1866c8b79
--- /dev/null
+++ b/components/mailosaur/sources/new-message/test-event.mjs
@@ -0,0 +1,16 @@
+export default {
+  "id": "77061c9f-da47-4009-9f33-9715a3bbf00c",
+  "received": "2019-08-06T17:44:07.197781+00:00",
+  "type": "Email",
+  "subject": "Email subject line",
+  "from": [{
+    "name": "Acme",
+    "email": "noreply@example.com"
+  }],
+  "to": [{
+    "name": "Jane Doe",
+    "email": "janedoe@abc1234.mailosaur.net"
+  }],
+  "cc": [],
+  "bcc": []
+}
\ No newline at end of file
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 98ee964905365..659af0f0bcb58 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7761,7 +7761,11 @@ importers:
 
   components/mailninja: {}
 
-  components/mailosaur: {}
+  components/mailosaur:
+    dependencies:
+      '@pipedream/platform':
+        specifier: ^3.0.3
+        version: 3.0.3
 
   components/mailrefine: {}