Alps will not be able to open the text portion of that email
runtime error: invalid memory address or nil pointer dereference
(aerc also crashes with that same error) For comparison, thunderbird can open that email.
Can you post the stack trace?
020-07-13T13:31:03-04:00 - [PANIC RECOVER] runtime error: invalid memory address or nil pointer dereference goroutine 115 [running]: github.com/labstack/echo/v4/middleware.RecoverWithConfig.func1.1.1(0x171c358, 0x1000, 0x0, 0x1800a00, 0xc000465200) /Users/zdecook 1/go/pkg/mod/github.com/labstack/echo/v4@v4.1.16/middleware/recover.go:71 +0xee panic(0x1640d20, 0x1cd2720) /usr/local/Cellar/go/1.14.4/libexec/src/runtime/panic.go:969 +0x166 bufio.(*Reader).fill(0xc0001aba40) /usr/local/Cellar/go/1.14.4/libexec/src/bufio/bufio.go:100 +0xd4 bufio.(*Reader).ReadSlice(0xc0001aba40, 0x10100c00024b10a, 0x0, 0x1000, 0xc0006b6000, 0x0, 0x5) /usr/local/Cellar/go/1.14.4/libexec/src/bufio/bufio.go:359 +0x3d mime/quotedprintable.(*Reader).Read(0xc0007dc7b0, 0xc0006b6000, 0x1000, 0x1000, 0xc0005072d4, 0xc0005072c0, 0x0) /usr/local/Cellar/go/1.14.4/libexec/src/mime/quotedprintable/reader.go:87 +0x35e bufio.(*Scanner).Scan(0xc00024b418, 0x0) /usr/local/Cellar/go/1.14.4/libexec/src/bufio/scan.go:213 +0xa4 git.sr.ht/~emersion/alps/plugins/viewtext.viewer.ViewMessagePart(0xc000465200, 0xc000487640, 0xc000488190, 0x0, 0x0, 0x17e5da0, 0xc0001915d0) /Users/zdecook 1/test/gitstuffs/alps/plugins/viewtext/viewer.go:67 +0x138 git.sr.ht/~emersion/alps/plugins/base.viewMessagePart(0xc000465200, 0xc000487640, 0xc000488190, 0xc0005fa570, 0x0, 0x0, 0x0) /Users/zdecook 1/test/gitstuffs/alps/plugins/base/viewer.go:31 +0x92 git.sr.ht/~emersion/alps/plugins/base.handleGetPart(0xc000465200, 0x1061900, 0xc000682480, 0x4) /Users/zdecook 1/test/gitstuffs/alps/plugins/base/routes.go:308 +0x5f7 git.sr.ht/~emersion/alps/plugins/base.registerRoutes.func2(0xc000465200, 0x4, 0x10149db) /Users/zdecook 1/test/gitstuffs/alps/plugins/base/routes.go:33 +0x30 git.sr.ht/~emersion/alps.(*goPlugin).SetRoutes.func1(0x1800a00, 0xc000465200, 0xc00035e660, 0xc00024ba40) /Users/zdecook 1/test/gitstuffs/alps/plugin_go.go:39 +0x40 github.com/labstack/echo/v4.(*Echo).add.func1(0x1800a00, 0xc000465200, 0xc00024ba00, 0x1479a67) /Users/zdecook 1/go/pkg/mod/github.com/labstack/echo/v4@v4.1.16/echo.go:512 +0x8a github.com/labstack/echo/v4/middleware.RecoverWithConfig.func1.1(0x1800a00, 0xc000465200, 0x0, 0x0) /Users/zdecook 1/go/pkg/mod/github.com/labstack/echo/v4@v4.1.16/middleware/recover.go:78 +0x12a git.sr.ht/~emersion/alps.New.func4.1(0x1800be0, 0xc00039a320, 0xc000467a40, 0x16) /Users/zdecook 1/test/gitstuffs/alps/server.go:431 +0x1a6 git.sr.ht/~emersion/alps.New.func3.1(0x1800be0, 0xc00039a320, 0x3, 0x4) /Users/zdecook 1/test/gitstuffs/alps/server.go:406 +0x217 github.com/labstack/echo/v4.(*Echo).ServeHTTP.func1(0x1800be0, 0xc00039a320, 0xc00021e900, 0xc00024bb80) /Users/zdecook 1/go/pkg/mod/github.com/labstack/echo/v4@v4.1.16/echo.go:617 +0x110 git.sr.ht/~emersion/alps.New.func2.1(0x1800be0, 0xc00039a320, 0x1, 0x1) /Users/zdecook 1/test/gitstuffs/alps/server.go:393 +0x56 github.com/labstack/echo/v4.(*Echo).ServeHTTP(0xc0002e01e0, 0x17f12a0, 0xc0004a2540, 0xc0003c8d00) /Users/zdecook 1/go/pkg/mod/github.com/labstack/echo/v4@v4.1.16/echo.go:623 +0x16c net/http.serverHandler.ServeHTTP(0xc000302000, 0x17f12a0, 0xc0004a2540, 0xc0003c8d00) /usr/local/Cellar/go/1.14.4/libexec/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc00039a280, 0x17f2820, 0xc000030e40) /usr/local/Cellar/go/1.14.4/libexec/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /usr/local/Cellar/go/1.14.4/libexec/src/net/http/server.go:2933 +0x35c goroutine 1 [IO wait]: internal/poll.runtime_pollWait(0x9422410, 0x72, 0x0) /usr/local/Cellar/go/1.14.4/libexec/src/runtime/netpoll.go:203 +0x55 internal/poll.(*pollDesc).wait(0xc00078a498, 0x72, 0x0, 0x0, 0x16ec757) /usr/local/Cellar/go/1.14.4/libexec/src/internal/poll/fd_poll_runtime.go:87 +0x45 internal/poll.(*pollDesc).waitRead(...) /usr/local/Cellar/go/1.14.4/libexec/src/internal/poll/fd_poll_runtime.go:92 internal/poll.(*FD).Accept(0xc00078a480, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /usr/local/Cellar/go/1.14.4/libexec/src/internal/poll/fd_unix.go:384 +0x1d4 net.(*netFD).accept(0xc00078a480, 0x50, 0x50, 0xc000100140) /usr/local/Cellar/go/1.14.4/libexec/src/net/fd_unix.go:238 +0x42 net.(*TCPListener).accept(0xc0001068a0, 0x1066 2020-07-13T13:31:03-04:00 ERROR runtime error: invalid memory address or nil pointer dereference