Greetings,
I have several users reporting that PDF attachments are coming in
corrupted. They are using either thunderbird or outlook on windows xp.
I have flushed the cache files for the users, but the problem still
persists. Could anyone offer some troubleshooting tips?
Thanks in advance for any assistance.
Below is my version and config.
Regards,
Mike
dovecot --version
1.1.7
dovecot -n
# 1.1.7: /etc/dovecot.conf
Warning: fd limit 1024 is lower than what Dovecot can use under full
load (more than 1792). Either grow the limit or change
login_max_processes_count and max_mail_processes settings
# OS: Linux 2.6.18-92.1.13.el5 x86_64 Red Hat Enterprise Linux Server
release 5.2 (Tikanga)
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot
listen: [*]
ssl_key_file: /etc/pki/dovecot/certs/dovecot.pem
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(pop3): /usr/libexec/dovecot/pop3-login
login_max_processes_count: 384
login_max_connections: 384
max_mail_processes: 1024
verbose_proctitle: yes
first_valid_uid: 10
mail_privileged_group: mail
mail_location: mbox:%h/mail:INBOX=/var/spool/mail/%u
mail_debug: yes
mail_full_filesystem_access: yes
mmap_disable: yes
mail_nfs_index: yes
lock_method: dotlock
mbox_read_locks: dotlock
mbox_write_locks: dotlock
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(pop3): /usr/libexec/dovecot/pop3
mail_plugin_dir(default): /usr/lib64/dovecot/imap
mail_plugin_dir(imap): /usr/lib64/dovecot/imap
mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3
mail_log_max_lines_per_sec: 25
imap_client_workarounds(default): outlook-idle tb-extra-mailbox-sep
imap_client_workarounds(imap): outlook-idle tb-extra-mailbox-sep
imap_client_workarounds(pop3):
namespace:
type: private
separator: /
inbox: yes
list: yes
subscriptions: yes
namespace:
type: private
separator: /
prefix: mail/
hidden: yes
subscriptions: yes
namespace:
type: private
separator: /
prefix: ~/mail/
hidden: yes
subscriptions: yes
namespace:
type: private
separator: /
prefix: ~%u/mail/
hidden: yes
subscriptions: yes
auth default:
mechanisms: plain login digest-md5
verbose: yes
debug: yes
passdb:
driver: ldap
args: /etc/dovecot-ldap.conf
userdb:
driver: ldap
args: /etc/dovecot-ldap.conf
socket:
type: listen
client:
path: /var/spool/postfix/private/auth
mode: 432
user: postfix
group: postfix
Michael Dunne schrieb:> Greetings, > > I have several users reporting that PDF attachments are coming in > corrupted. They are using either thunderbird or outlook on windows xp. I > have flushed the cache files for the users, but the problem still > persists. Could anyone offer some troubleshooting tips? > > Thanks in advance for any assistance. > > Below is my version and config. > > Regards, > > Mike > > dovecot --version > 1.1.7 > > dovecot -n > # 1.1.7: /etc/dovecot.conf > Warning: fd limit 1024 is lower than what Dovecot can use under full > load (more than 1792). Either grow the limit or change > login_max_processes_count and max_mail_processes settings > # OS: Linux 2.6.18-92.1.13.el5 x86_64 Red Hat Enterprise Linux Server > release 5.2 (Tikanga) > base_dir: /var/run/dovecot/ > log_path: /var/log/dovecot > listen: [*] > ssl_key_file: /etc/pki/dovecot/certs/dovecot.pem > login_dir: /var/run/dovecot/login > login_executable(default): /usr/libexec/dovecot/imap-login > login_executable(imap): /usr/libexec/dovecot/imap-login > login_executable(pop3): /usr/libexec/dovecot/pop3-login > login_max_processes_count: 384 > login_max_connections: 384 > max_mail_processes: 1024 > verbose_proctitle: yes > first_valid_uid: 10 > mail_privileged_group: mail > mail_location: mbox:%h/mail:INBOX=/var/spool/mail/%u > mail_debug: yes > mail_full_filesystem_access: yes > mmap_disable: yes > mail_nfs_index: yes > lock_method: dotlock > mbox_read_locks: dotlock > mbox_write_locks: dotlock > mail_executable(default): /usr/libexec/dovecot/imap > mail_executable(imap): /usr/libexec/dovecot/imap > mail_executable(pop3): /usr/libexec/dovecot/pop3 > mail_plugin_dir(default): /usr/lib64/dovecot/imap > mail_plugin_dir(imap): /usr/lib64/dovecot/imap > mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 > mail_log_max_lines_per_sec: 25 > imap_client_workarounds(default): outlook-idle tb-extra-mailbox-sep > imap_client_workarounds(imap): outlook-idle tb-extra-mailbox-sep > imap_client_workarounds(pop3): > namespace: > type: private > separator: / > inbox: yes > list: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: mail/ > hidden: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: ~/mail/ > hidden: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: ~%u/mail/ > hidden: yes > subscriptions: yes > auth default: > mechanisms: plain login digest-md5 > verbose: yes > debug: yes > passdb: > driver: ldap > args: /etc/dovecot-ldap.conf > userdb: > driver: ldap > args: /etc/dovecot-ldap.conf > socket: > type: listen > client: > path: /var/spool/postfix/private/auth > mode: 432 > user: postfix > group: postfix >Hi Michael, the chances that dovecot or postfix has something to do with this are nearly null, corruption of spez. file types may result by broken virus scanners , or what i never had expected i had this issue one time on a windows exchange machine with pop3 downloader which had a broken interface bonding, so it was the nic drivers fault, so there may be some equal nic or network problem on the clients side and or virus scanners , proxies etc on their side, a good test is to use some webmail ( i.e squirrelmail ) on the dovecot server itself open some example mails ( which are reported to be broken ) with it and look if they currupted or not, if they arent the problem is on the client side and you dont have to care, if they are allready corrupted on your mailserver check antivirus solution you have installted in the server, disable it for further tests. -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
Greetings, Thanks to everyone that replied. I have not been able to isolate the cause, has this happened to anyone else? Thanks, Mike On Jan 5, 2009, at 5:43 PM, Michael Dunne wrote:> Greetings, > > I have several users reporting that PDF attachments are coming in > corrupted. They are using either thunderbird or outlook on windows > xp. I have flushed the cache files for the users, but the problem > still persists. Could anyone offer some troubleshooting tips? > > Thanks in advance for any assistance. > > Below is my version and config. > > Regards, > > Mike > > dovecot --version > 1.1.7 > > dovecot -n > # 1.1.7: /etc/dovecot.conf > Warning: fd limit 1024 is lower than what Dovecot can use under full > load (more than 1792). Either grow the limit or change > login_max_processes_count and max_mail_processes settings > # OS: Linux 2.6.18-92.1.13.el5 x86_64 Red Hat Enterprise Linux > Server release 5.2 (Tikanga) > base_dir: /var/run/dovecot/ > log_path: /var/log/dovecot > listen: [*] > ssl_key_file: /etc/pki/dovecot/certs/dovecot.pem > login_dir: /var/run/dovecot/login > login_executable(default): /usr/libexec/dovecot/imap-login > login_executable(imap): /usr/libexec/dovecot/imap-login > login_executable(pop3): /usr/libexec/dovecot/pop3-login > login_max_processes_count: 384 > login_max_connections: 384 > max_mail_processes: 1024 > verbose_proctitle: yes > first_valid_uid: 10 > mail_privileged_group: mail > mail_location: mbox:%h/mail:INBOX=/var/spool/mail/%u > mail_debug: yes > mail_full_filesystem_access: yes > mmap_disable: yes > mail_nfs_index: yes > lock_method: dotlock > mbox_read_locks: dotlock > mbox_write_locks: dotlock > mail_executable(default): /usr/libexec/dovecot/imap > mail_executable(imap): /usr/libexec/dovecot/imap > mail_executable(pop3): /usr/libexec/dovecot/pop3 > mail_plugin_dir(default): /usr/lib64/dovecot/imap > mail_plugin_dir(imap): /usr/lib64/dovecot/imap > mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 > mail_log_max_lines_per_sec: 25 > imap_client_workarounds(default): outlook-idle tb-extra-mailbox-sep > imap_client_workarounds(imap): outlook-idle tb-extra-mailbox-sep > imap_client_workarounds(pop3): > namespace: > type: private > separator: / > inbox: yes > list: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: mail/ > hidden: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: ~/mail/ > hidden: yes > subscriptions: yes > namespace: > type: private > separator: / > prefix: ~%u/mail/ > hidden: yes > subscriptions: yes > auth default: > mechanisms: plain login digest-md5 > verbose: yes > debug: yes > passdb: > driver: ldap > args: /etc/dovecot-ldap.conf > userdb: > driver: ldap > args: /etc/dovecot-ldap.conf > socket: > type: listen > client: > path: /var/spool/postfix/private/auth > mode: 432 > user: postfix > group: postfix