mutt-1.5.16: smtp error 550 causes blocking

[errordeveloper@…]

Package: mutt
Version: 1.5.16
Severity: normal

-- Please type your report below this line
I had this heppening a few times:
after getting SMTP session error 550 i could not do anything,
just had to correct the From field, but Mutt wouldnt react on any keystrokes,
apart from ^C .
i haven't got any extra debug msgs, sorry.



-- System Information
System Version: Linux 00110101 2.6.20-gentoo-r8-111 #7 SMP PREEMPT Wed Aug 29 23:56:20 UTC 2007 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux

-- Build environment information

(Note: This is the build environment installed on the system
muttbug is run on.  Information may or may not match the environment
used to build mutt.)

- gcc version information
x86_64-pc-linux-gnu-gcc
Reading specs from /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/specs
Configured with: /var/cache/etmp/portage/sys-devel/gcc-3.4.6-r2/work/gcc-3.4.6/configure --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/3.4.6 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.6 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.6/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.6/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/include/g++-v3 --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext --with-system-zlib --disable-checking --disable-werror --enable-secureplt --disable-libunwind-exceptions --enable-multilib --enable-java-awt=gtk --enable-languages=c,c++,java,objc,f77 --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 3.4.6 (Gentoo 3.4.6-r2, ssp-3.4.6-1.0, pie-8.7.10)

- CFLAGS
-Wall -pedantic -march=athlon64 -O2 -pipe

-- Mutt Version Information

Mutt 1.5.16 (2007-06-09)
Copyright (C) 1996-2007 Michael R. Elkins and others.
Mutt comes with ABSOLUTELY NO WARRANTY; for details type `mutt -vv'.
Mutt is free software, and you are welcome to redistribute it
under certain conditions; type `mutt -vv' for details.

System: Linux 2.6.20-gentoo-r8-111 (x86_64)
ncurses: ncurses 5.6.20061217 (compiled with 5.6)
libidn: 0.6.5 (compiled with 0.6.5)
Compile options:
-DOMAIN
-DEBUG
-HOMESPOOL  +USE_SETGID  +USE_DOTLOCK  +DL_STANDALONE  
-USE_FCNTL  +USE_FLOCK   -USE_INODESORT   
-USE_POP  -USE_IMAP  +USE_SMTP  -USE_GSS  -USE_SSL_OPENSSL  +USE_SSL_GNUTLS  +USE_SASL  +HAVE_GETADDRINFO  
-HAVE_REGCOMP  +USE_GNU_REGEX  
+HAVE_COLOR  +HAVE_START_COLOR  +HAVE_TYPEAHEAD  +HAVE_BKGDSET  
+HAVE_CURS_SET  +HAVE_META  +HAVE_RESIZETERM  
+CRYPT_BACKEND_CLASSIC_PGP  +CRYPT_BACKEND_CLASSIC_SMIME  +CRYPT_BACKEND_GPGME  
-EXACT_ADDRESS  -SUN_ATTACHMENT  
+ENABLE_NLS  -LOCALES_HACK  +HAVE_WC_FUNCS  +HAVE_LANGINFO_CODESET  +HAVE_LANGINFO_YESEXPR  
+HAVE_ICONV  -ICONV_NONTRANS  +HAVE_LIBIDN  +HAVE_GETSID  +USE_HCACHE  
-ISPELL
SENDMAIL="/usr/sbin/sendmail"
MAILPATH="/var/spool/mail"
PKGDATADIR="/usr/share/mutt"
SYSCONFDIR="/etc/mutt"
EXECSHELL="/bin/sh"
MIXMASTER="mixmaster"
To contact the developers, please mail to <mutt-dev@mutt.org>.
To report a bug, please visit http://bugs.mutt.org/.

patch-1.5.16.sidebar.20070704.txt

--- Begin /home/110101/.muttrc
set folder=~/Mail/Mutt	# this is symlink virtualisation thingy ;]
set sort=threads
set collapse_unread=yes
set sort_browser=alpha
set sort_browser=reverse-alpha
set folder_format="%t-%N ===    %f  %s      %>:  %F %u:%g    == "
set quit=ask-no
color hdrdefault blue white
color quoted blue white
color signature green white
color attachment red white
color message magenta white
color error brightred white
color indicator brightyellow brightblack
color status white magenta
color tree black white
color normal black white
color markers cyan white
color search white black
color tilde brightmagenta white
color index blue white ~F
color index brightgreen white "~N"
color index green white "~O"
color index brightmagenta white "~g|~G|~k"
color header cyan white ^To:
color header cyan white ^From:
color header cyan white ^Sender:
color header yellow white ^Subject:
my_hdr X-ErrosOcured: N0N3
my_hdr Face: :]\#
set edit_headers=yes
mailboxes uni imp inbox misc lists crap trashed
set status_on_top
set pager_context=2                                                                                                                                            
set menu_scroll                      
send2-hook '~f ".*ild0012@.*(londonmet|unl)\.ac\.uk.*"' set smtp_url="smtp://ild0012@smtp.north.londonmet.ac.uk:587/"
send2-hook '~f ".*errordeveloper@(gmail|googlemail).com.*"' set smtp_url="smtps://errordeveloper@smtp.googlemail.com/"
source ~/.mutt/aliases
--- End /home/110101/.muttrc


--- Begin /etc/mutt/Muttrc
--- End /etc/mutt/Muttrc