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-rw-r--r--src/net/pop3/POP3Store.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/net/pop3/POP3Store.cpp b/src/net/pop3/POP3Store.cpp
index 10a67c4a..b27c4295 100644
--- a/src/net/pop3/POP3Store.cpp
+++ b/src/net/pop3/POP3Store.cpp
@@ -378,7 +378,7 @@ void POP3Store::authenticateSASL()
(x[1] == 'A' || x[1] == 'a') &&
(x[2] == 'S' || x[2] == 's') &&
(x[3] == 'L' || x[3] == 'l') &&
- std::isspace(x[4]))
+ (x[4] == ' ' || x[4] == '\t'))
{
const string list(x.begin() + 5, x.end());