From 5a14a5b067ac10d4883906d15755e24c8bb25a4a Mon Sep 17 00:00:00 2001
From: Mechiel Lukkien <mechiel@ueber.net>
Date: Mon, 13 Jan 2025 11:13:26 +0100
Subject: [PATCH] smtpserver: when doing slow writes due to spammy incoming
 delivery, try a bit harder to prevent a timeout for the other side (if it is
 mox/itself!)

based on question from wneessen
---
 smtpserver/server.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/smtpserver/server.go b/smtpserver/server.go
index 629f3ae..f17ff6a 100644
--- a/smtpserver/server.go
+++ b/smtpserver/server.go
@@ -690,7 +690,7 @@ func (c *conn) Write(buf []byte) (int, error) {
 
 			// Make sure we don't take too long, otherwise the remote SMTP client may close the
 			// connection.
-			if time.Until(deadline) < 2*badClientDelay {
+			if time.Until(deadline) < 5*badClientDelay {
 				chunk = len(buf)
 			}
 		}