diff --git a/packages/backend/src/services/send-email.ts b/packages/backend/src/services/send-email.ts
index d24168ec46..f5f36148f6 100644
--- a/packages/backend/src/services/send-email.ts
+++ b/packages/backend/src/services/send-email.ts
@@ -21,8 +21,8 @@ export async function sendEmail(to: string, subject: string, html: string, text:
 		proxy: config.proxySmtp,
 		auth: enableAuth ? {
 			user: meta.smtpUser,
-			pass: meta.smtpPass
-		} : undefined
+			pass: meta.smtpPass,
+		} : undefined,
 	} as any);
 
 	try {
@@ -33,86 +33,85 @@ export async function sendEmail(to: string, subject: string, html: string, text:
 			subject: subject,
 			text: text,
 			html: `<!doctype html>
-			<html>
-				<head>
-					<meta charset="utf-8">
-					<title>${ subject }</title>
-					<style>
-						html {
-							background: #eee;
-						}
+<html>
+	<head>
+		<meta charset="utf-8">
+		<title>${ subject }</title>
+		<style>
+			html {
+				background: #eee;
+			}
 
-						body {
-							padding: 16px;
-							margin: 0;
-							font-family: sans-serif;
-							font-size: 14px;
-						}
+			body {
+				padding: 16px;
+				margin: 0;
+				font-family: sans-serif;
+				font-size: 14px;
+			}
 
-						a {
-							text-decoration: none;
-							color: #86b300;
-						}
-						a:hover {
-							text-decoration: underline;
-						}
+			a {
+				text-decoration: none;
+				color: #86b300;
+			}
+			a:hover {
+				text-decoration: underline;
+			}
 
-						main {
-							max-width: 500px;
-							margin: 0 auto;
-							background: #fff;
-							color: #555;
-						}
-							main > header {
-								padding: 32px;
-								background: #86b300;
-							}
-								main > header > img {
-									max-width: 128px;
-									max-height: 28px;
-									vertical-align: bottom;
-								}
-							main > article {
-								padding: 32px;
-							}
-								main > article > h1 {
-									margin: 0 0 1em 0;
-								}
-							main > footer {
-								padding: 32px;
-								border-top: solid 1px #eee;
-							}
+			main {
+				max-width: 500px;
+				margin: 0 auto;
+				background: #fff;
+				color: #555;
+			}
+				main > header {
+					padding: 32px;
+					background: #86b300;
+				}
+					main > header > img {
+						max-width: 128px;
+						max-height: 28px;
+						vertical-align: bottom;
+					}
+				main > article {
+					padding: 32px;
+				}
+					main > article > h1 {
+						margin: 0 0 1em 0;
+					}
+				main > footer {
+					padding: 32px;
+					border-top: solid 1px #eee;
+				}
 
-						nav {
-							box-sizing: border-box;
-							max-width: 500px;
-							margin: 16px auto 0 auto;
-							padding: 0 32px;
-						}
-							nav > a {
-								color: #888;
-							}
-					</style>
-				</head>
-				<body>
-					<main>
-						<header>
-							<img src="${ meta.logoImageUrl || meta.iconUrl || iconUrl }"/>
-						</header>
-						<article>
-							<h1>${ subject }</h1>
-							<div>${ html }</div>
-						</article>
-						<footer>
-							<a href="${ emailSettingUrl }">${ 'Email setting' }</a>
-						</footer>
-					</main>
-					<nav>
-						<a href="${ config.url }">${ config.host }</a>
-					</nav>
-				</body>
-			</html>
-			`
+			nav {
+				box-sizing: border-box;
+				max-width: 500px;
+				margin: 16px auto 0 auto;
+				padding: 0 32px;
+			}
+				nav > a {
+					color: #888;
+				}
+		</style>
+	</head>
+	<body>
+		<main>
+			<header>
+				<img src="${ meta.logoImageUrl || meta.iconUrl || iconUrl }"/>
+			</header>
+			<article>
+				<h1>${ subject }</h1>
+				<div>${ html }</div>
+			</article>
+			<footer>
+				<a href="${ emailSettingUrl }">${ 'Email setting' }</a>
+			</footer>
+		</main>
+		<nav>
+			<a href="${ config.url }">${ config.host }</a>
+		</nav>
+	</body>
+</html>`,
 		});
 
 		logger.info('Message sent: %s', info.messageId);
