diff --git a/Tests/PGPTests.m b/Tests/PGPTests.m
index 86f7157d..287ef368 100644
--- a/Tests/PGPTests.m
+++ b/Tests/PGPTests.m
@@ -552,7 +552,26 @@ - (void)testExpirationDateIssue146 {
   XCTAssertEqual(key.expirationDate.timeIntervalSince1970, 1610412042); // Tue Jan 12 01:40:42 2021 CET
 }
 
-- (void)testECCPublicKeyImportIssue141 {
+- (void)testVerifyMailIssue150{
+    let keyring = [[PGPKeyring alloc] init];
+    [keyring importKeys:[PGPTestUtils readKeysFromPath:@"issue150/publicKey.asc"]];
+    [keyring importKeys:[PGPTestUtils readKeysFromPath:@"issue150/secretKey.asc"]];
+    XCTAssertEqual(keyring.keys.count, 2);
+    
+    // Try to decrypt and verify a mail from Thunderbird
+    let messagePath2 = [PGPTestUtils pathToBundledFile:@"issue150/encSignedMsg.txt"];
+    NSError *decryptError = nil;
+    let res = [ObjectivePGP decrypt:[NSData dataWithContentsOfFile: messagePath2]  andVerifySignature:YES usingKeys: keyring.keys passphraseForKey:nil error: &decryptError];
+    XCTAssertNil(decryptError);
+    XCTAssertNotNil(res);
+    
+    // Try to verify a mail from Thunderbird
+    let messagePath = [PGPTestUtils pathToBundledFile:@"issue150/signedMsg.txt"];
+    let signaturePath = [PGPTestUtils pathToBundledFile:@"issue150/signature.txt"];
+    BOOL isVerified = [ObjectivePGP verify:[NSData dataWithContentsOfFile:messagePath] withSignature:[NSData dataWithContentsOfFile:signaturePath] usingKeys:keyring.keys passphraseForKey:nil error:&decryptError];
+    XCTAssertTrue(isVerified);
+    XCTAssertNil(decryptError);
+- (void) testECCPublicKeyImportIssue141 {
     let eccPub = [PGPTestUtils readKeysFromPath:@"issue141/eccPublicKey.asc"];
     XCTAssertEqual(eccPub.count, 0);
     let rsaPub = [PGPTestUtils readKeysFromPath:@"issue141/rsaPublicKey.asc"];
diff --git a/Tests/testfiles.bundle/issue150/encSignedMsg.txt b/Tests/testfiles.bundle/issue150/encSignedMsg.txt
new file mode 100644
index 00000000..613c16f3
--- /dev/null
+++ b/Tests/testfiles.bundle/issue150/encSignedMsg.txt
@@ -0,0 +1,55 @@
+-----BEGIN PGP MESSAGE-----
+
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+-----END PGP MESSAGE-----
diff --git a/Tests/testfiles.bundle/issue150/mail.eml b/Tests/testfiles.bundle/issue150/mail.eml
new file mode 100644
index 00000000..87c1f6b6
--- /dev/null
+++ b/Tests/testfiles.bundle/issue150/mail.eml
@@ -0,0 +1,110 @@
+Return-Path: <alice@enzevalos.de>
+Delivered-To: bob@enzevalos.de
+To: Bob <bob@enzevalos.de>
+From: alice <alice@enzevalos.de>
+Subject: signed from Thunderbird
+Openpgp: preference=signencrypt
+Autocrypt: addr=alice@enzevalos.de; prefer-encrypt=mutual; keydata=
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+FRdV+uRcABCD6OuDTg==
+Message-ID: <310eef89-5be5-6018-3ded-a9cda76a0342@enzevalos.de>
+Date: Wed, 31 Oct 2018 12:15:17 +0100
+User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0)
+Gecko/20100101 Thunderbird/52.9.1
+MIME-Version: 1.0
+Content-Type: multipart/signed; micalg=pgp-sha512;
+protocol="application/pgp-signature";
+boundary="jGY9eHsM08PgfVXXPT2f3AZCPJW4IwZj4"
+
+This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
+--jGY9eHsM08PgfVXXPT2f3AZCPJW4IwZj4
+Content-Type: multipart/mixed; boundary="dibSubdyFVMsrRSzHsR83Pehjj4u2PlX3";
+protected-headers="v1"
+From: alice <alice@enzevalos.de>
+To: Bob <bob@enzevalos.de>
+Message-ID: <310eef89-5be5-6018-3ded-a9cda76a0342@enzevalos.de>
+Subject: signed from Thunderbird
+
+--dibSubdyFVMsrRSzHsR83Pehjj4u2PlX3
+Content-Type: text/plain; charset=utf-8
+Content-Transfer-Encoding: quoted-printable
+Content-Language: en-US
+
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+
+
+
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+
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+Content-Type: application/pgp-signature; name="signature.asc"
+Content-Description: OpenPGP digital signature
+Content-Disposition: attachment; filename="signature.asc"
+
+-----BEGIN PGP SIGNATURE-----
+
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+=SZPp
+-----END PGP SIGNATURE-----
+
+--jGY9eHsM08PgfVXXPT2f3AZCPJW4IwZj4--
+
diff --git a/Tests/testfiles.bundle/issue150/publicKey.asc b/Tests/testfiles.bundle/issue150/publicKey.asc
new file mode 100644
index 00000000..1a747bbb
--- /dev/null
+++ b/Tests/testfiles.bundle/issue150/publicKey.asc
@@ -0,0 +1,59 @@
+
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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diff --git a/Tests/testfiles.bundle/issue150/secretKey.asc b/Tests/testfiles.bundle/issue150/secretKey.asc
new file mode 100644
index 00000000..4567fd75
--- /dev/null
+++ b/Tests/testfiles.bundle/issue150/secretKey.asc
@@ -0,0 +1,137 @@
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diff --git a/Tests/testfiles.bundle/issue150/signedMsg.txt b/Tests/testfiles.bundle/issue150/signedMsg.txt
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+From: alice <alice@enzevalos.de>
+To: Bob <bob@enzevalos.de>
+Message-ID: <310eef89-5be5-6018-3ded-a9cda76a0342@enzevalos.de>
+Subject: signed from Thunderbird
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