From ac33b79bdc4ba5f806cc92a8ff3fc3e03439fa0c Mon Sep 17 00:00:00 2001
From: mdecimus <mauro@stalw.art>
Date: Sat, 23 Aug 2025 19:57:52 +0200
Subject: [PATCH] IMAP/ManageSieve: Increase maximum quoted argument size
 (fixes #2039)

---
 crates/imap-proto/src/receiver.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/imap-proto/src/receiver.rs b/crates/imap-proto/src/receiver.rs
index 584b3eaa..e8632b78 100644
--- a/crates/imap-proto/src/receiver.rs
+++ b/crates/imap-proto/src/receiver.rs
@@ -277,7 +277,7 @@ impl<T: CommandParser> Receiver<T> {
                         if !escaped {
                             self.push_argument(true)?;
                             self.state = State::Argument { last_ch: b' ' };
-                        } else if self.buf.len() < 1024 {
+                        } else if self.buf.len() < 4096 {
                             self.buf.push(ch);
                             self.state = State::ArgumentQuoted { escaped: false };
                         } else {
@@ -294,7 +294,7 @@ impl<T: CommandParser> Receiver<T> {
                         return Err(self.error_reset("Unterminated quoted argument."));
                     }
                     _ => {
-                        if self.buf.len() < 1024 {
+                        if self.buf.len() < 4096 {
                             if escaped {
                                 self.buf.push(b'\\');
                             }