Index: Cargo.lock
==================================================================
--- Cargo.lock	
+++ Cargo.lock	
@@ -1783,11 +1783,11 @@
  "futures-lite",
 ]
 
 [[package]]
 name = "smtp2tg"
-version = "0.6.7"
+version = "0.6.8"
 dependencies = [
  "async-compat",
  "clap",
  "config",
  "hostname",

Index: Cargo.toml
==================================================================
--- Cargo.toml	
+++ Cargo.toml	
@@ -17,14 +17,10 @@
 regex = "1.11.1"
 smol = "2.0.2"
 stacked_errors = "0.8"
 tgbot = "0.48"
 
-[profile.release]
-lto = true
-codegen-units = 1
-
 # All tests are moved to tests/
 [lib]
 test = false
 
 [[bin]]

Index: src/mail.rs
==================================================================
--- src/mail.rs	
+++ src/mail.rs	
@@ -57,11 +57,10 @@
 	data: Vec<u8>,
 	headers: Option<SomeHeaders>,
 	tg: Arc<TelegramTransport>,
 	fields: HashSet<String>,
 	address: Regex,
-	domains: HashSet<String>,
 }
 
 impl MailServer {
 	/// Initializes the mail server: sets up the Telegram API client and
 	/// validates all required configuration values.
@@ -112,11 +111,10 @@
 			data: vec!(),
 			headers: None,
 			tg,
 			fields,
 			address,
-			domains,
 		})
 	}
 
 	/// Retrieves the Telegram chat ID for a given email address, checks that
 	/// used domain is allowed.

Index: src/telegram.rs
==================================================================
--- src/telegram.rs	
+++ src/telegram.rs	
@@ -16,21 +16,11 @@
 	StackableErr,
 };
 use tgbot::{
 	api::Client,
 	types::{
-		ChatPeerId,
-		InputFile,
-		InputFileReader,
-		InputMediaDocument,
-		MediaGroup,
-		MediaGroupItem,
-		Message,
-		ParseMode::Html,
-		SendMediaGroup,
-		SendMessage,
-		SendDocument,
+		ChatPeerId, InputFile, InputFileReader, InputMediaDocument, InputText, MediaGroup, MediaGroupItem, Message, ParseMode::Html, SendDocument, SendMediaGroup, SendMessage
 	},
 };
 
 #[derive(Debug)]
 pub struct TelegramTransport {
@@ -79,11 +69,11 @@
 	/// * `Result<Message>` - Telegram API response.
 	///
 	/// # Errors
 	/// Returns an error if `msg` contains a closing Telegram tag or sending fails.
 	pub async fn debug (&self, msg: &str) -> Result<Message> {
-		self.send(&self.default, format!("<pre>{}</pre>", validate(msg).stack()?)).await
+		self.send(&self.default, &format!("<pre>{}</pre>", validate(msg).stack()?)).await
 	}
 
 	/// Retrieves a chat ID by name.
 	///
 	/// # Arguments
@@ -105,15 +95,13 @@
 	/// * `to` - Target chat ID.
 	/// * `msg` - Message text (supports HTML formatting).
 	///
 	/// # Returns
 	/// * `Result<Message>` - Telegram API response.
-	pub async fn send <S> (&self, to: &ChatPeerId, msg: S) -> Result<Message>
-	where S: Into<String> + Debug{
+	pub async fn send (&self, to: &ChatPeerId, msg: &str) -> Result<Message> {
 		self.tg.execute(
-			SendMessage::new(*to, msg)
-			.with_parse_mode(Html)
+			SendMessage::new(*to, InputText::from(msg).with_format(Html))
 		).await.stack()
 	}
 
 	/// Sends a message with attachments to a specified chat.
 	///
@@ -127,25 +115,22 @@
 	pub async fn sendgroup (&self, to: &ChatPeerId, media: Vec<Attachment>, msg: &str) -> Result<()> {
 		if media.len() > 1 {
 			let mut attach = vec![];
 			let mut pos = media.len();
 			for file in media {
-				let mut caption = InputMediaDocument::default();
+				let mut doc = InputMediaDocument::from(
+					InputFile::from(
+						InputFileReader::from(file.data)
+							.with_file_name(file.name)
+					)
+				);
 				if pos == 1 {
-					caption = caption.with_caption(msg)
-						.with_caption_parse_mode(Html);
+					doc = doc.with_caption(InputText::from(msg)
+						.with_format(Html));
 				}
 				pos -= 1;
-				attach.push(
-					MediaGroupItem::for_document(
-						InputFile::from(
-							InputFileReader::from(file.data)
-								.with_file_name(file.name)
-						),
-						caption
-					)
-				);
+				attach.push(MediaGroupItem::from(doc));
 			}
 			self.tg.execute(SendMediaGroup::new(*to, MediaGroup::new(attach).stack()?)).await.stack()?;
 		} else {
 			if media.is_empty() {
 				bail!("At least one attachment is required.");
@@ -152,13 +137,13 @@
 			}
 			self.tg.execute(
 				SendDocument::new(
 					*to,
 					InputFileReader::from(media[0].data.clone())
-					.with_file_name(media[0].name.clone())
-				).with_caption(msg)
-				.with_caption_parse_mode(Html)
+						.with_file_name(media[0].name.clone())
+				).with_caption(InputText::from(msg)
+					.with_format(Html))
 			).await.stack()?;
 		}
 		Ok(())
 	}
 }