Mango Buzz
Level 1 (5 points)

Q: Large page pdf attachment show as garbled inline text

Issue: Garbled pdf attachment when using server 10.10.3

When: Only seems to happen on large page count pdf files. PDF files with only a few pages correctly show as an attachment and is able to be opened or saved.

Things I have tried: Different mail clients, Rebuilt mailboxes.

 

I'm pretty sure this is a server issue as our old 10.7.5 server does not have any problems. I believe it may have to do with how server modifies the message during delivery.

 

Thanks

 

Here is a partial email example

 

Content-Type: text/plain; charset=us-ascii

Content-Transfer-Encoding: quoted-printable

 

Text in message body

----boundary_47_add93390-faf7-4b43-8d72-d4e31956c6a7

Content-Type: application/octet-stream; name="name of pdf attachment file.pdf"

Content-Transfer-Encoding: base64

 

JVBERi0xLjUgCiXi48/TIAoxIDAgb2JqIAo8PCAKL1R5cGUgL0NhdGFsb2cgCi9QYWdlcyAy

IDAgUiAKL1BhZ2VNb2RlIC9Vc2VOb25lIAovVmlld2VyUHJlZmVyZW5jZXMgPDwgCi9GaXRX

aW5kb3cgdHJ1ZSAKL1BhZ2VMYXlvdXQgL1NpbmdsZVBhZ2UgCi9Ob25GdWxsU2NyZWVuUGFn

ZU1vZGUgL1VzZU5vbmUgCj4+IAo+PiAKZW5kb2JqIAo1IDAgb2JqIAo8PCAKL0xlbmd0aCA1

NTIgCi9GaWx0ZXIgWyAvRmxhdGVEZWNvZGUgXSAKPj4gCnN0cmVhbQp4nIWTTY/aMBCG7/4V

c+we4vozdvbGLquqVVWtIKueIZiWChKUwFb77zuehCTsElUojocZP37fsSNB4E/i4zIFxYFC

AfUv1k4WX5j0kOBjXQqJsynUgf1kJeb/MsG10yC48QrH1GhoCmYzwy0kVsIB57Kb7y9zGvdM

mY+BoaBbfx0RYcsUfLux6fKRSVKT6ZhoR+98VKMUJMYjwqYZzhTO0MC621IqTHU5m3HdJUXc

hvwjWpFsaRz3drDUxXu2ZNYIjB1uHNM+w3cXxuxDzmTXZC1IgYT8cLt1nzOQhnvIt+zT7Bm+

Posted on Apr 16, 2015 10:33 PM

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Q: Large page pdf attachment show as garbled inline text

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  • Helpful answers

  • by jepping,

    jepping jepping Apr 18, 2015 12:55 AM in response to Mango Buzz
    Level 2 (430 points)
    Apr 18, 2015 12:55 AM in response to Mango Buzz

    Hi,

     

    Check your settings of your server whether it supports large attachments.

    They should actually bounce when they are too big, did you get any bounces?

     

    ## check and increase attachment size

    http://support.apple.com/kb/HT5627

    sudo serveradmin settings mail:postfix:message_size_limit = number

    20mb attachment means: 20x1048576=20971520

     

    also export the sudo serveradmin settings mail for additional info for us to diagnose.

    Shield any personal info like DNS address.

    Goodluck

     

    Jeffrey

  • by Mango Buzz,

    Mango Buzz Mango Buzz Apr 18, 2015 11:38 AM in response to jepping
    Level 1 (5 points)
    Apr 18, 2015 11:38 AM in response to jepping

    Thanks Jepping for the reply. Here is a copy of my mail settings. My limit for message size is 100Mb. The file sizes for the pdf are not too big 10-15mb, however the page count is 200-300.

     

    mail:postfix:smtpd_pw_server_security_options:_array_index:0 = "cram-md5"

    mail:postfix:smtpd_pw_server_security_options:_array_index:1 = "digest-md5"

    mail:postfix:smtpd_pw_server_security_options:_array_index:2 = "gssapi"

    mail:postfix:smtpd_pw_server_security_options:_array_index:3 = "login"

    mail:postfix:smtpd_pw_server_security_options:_array_index:4 = "plain"

    mail:postfix:spam_quarantine = "junk-quarantine@example.com"

    mail:postfix:mail_events_log_level = "info"

    mail:postfix:smtp_reject_list_enabled = no

    mail:postfix:smtp_tls_cert_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c ert.pem"

    mail:postfix:smtp_sasl_auth_enable = no

    mail:postfix:whitelist_from = _empty_array

    mail:postfix:submit_cred:mail.mydomain.com:username = "submit"

    mail:postfix:submit_cred:mail.mydomain.com:password = "KsueIoRDdXSVNCNkq6gwdD"

    mail:postfix:submit_cred:FBSAdmins-Mac-mini.local:username = "submit"

    mail:postfix:submit_cred:FBSAdmins-Mac-mini.local:password = "KsueIoRDdXSVNCNkq6gwdD"

    mail:postfix:smtp_auth_relay_dict:smtp_auth_relay_host = ""

    mail:postfix:smtp_auth_relay_dict:smtp_auth_relay_pwd = ""

    mail:postfix:smtp_auth_relay_dict:smtp_auth_relay_userid = ""

    mail:postfix:client_permit_mynetworks = yes

    mail:postfix:smtpd_tls_cert_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c ert.pem"

    mail:postfix:maps_rbl_domains_enabled = yes

    mail:postfix:spam_subject_tag = "***JUNK MAIL*** "

    mail:postfix:smtpd_tls_CAfile = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c hain.pem"

    mail:postfix:message_size_limit_enabled = yes

    mail:postfix:virus_db_last_update = "2015-04-18 15:04:19 +0000"

    mail:postfix:smtp_tls_key_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.k ey.pem"

    mail:postfix:mail_enabled_groups:_array_index:0 = "1"

    mail:postfix:mail_enabled_groups:_array_index:1 = "2"

    mail:postfix:mail_enabled_groups:_array_index:2 = "3"

    mail:postfix:mail_enabled_groups:_array_index:3 = "4"

    mail:postfix:mail_enabled_groups:_array_index:4 = "5"

    mail:postfix:mail_enabled_groups:_array_index:5 = "6"

    mail:postfix:mail_enabled_groups:_array_index:6 = "7"

    mail:postfix:mail_enabled_groups:_array_index:7 = "8"

    mail:postfix:mail_enabled_groups:_array_index:8 = "9"

    mail:postfix:mail_enabled_groups:_array_index:9 = "10"

    mail:postfix:mail_enabled_groups:_array_index:10 = "11"

    mail:postfix:mail_enabled_groups:_array_index:11 = "12"

    mail:postfix:mail_enabled_groups:_array_index:12 = "13"

    mail:postfix:mail_enabled_groups:_array_index:13 = "14"

    mail:postfix:mail_enabled_groups:_array_index:14 = "15"

    mail:postfix:mail_enabled_groups:_array_index:15 = "16"

    mail:postfix:mail_enabled_groups:_array_index:16 = "17"

    mail:postfix:mail_enabled_groups:_array_index:17 = "18"

    mail:postfix:mail_enabled_groups:_array_index:18 = "19"

    mail:postfix:mail_enabled_groups:_array_index:19 = "20"

    mail:postfix:mail_enabled_groups:_array_index:20 = "21"

    mail:postfix:mail_enabled_groups:_array_index:21 = "22"

    mail:postfix:mail_enabled_groups:_array_index:22 = "23"

    mail:postfix:mail_enabled_groups:_array_index:23 = "24"

    mail:postfix:mail_enabled_groups:_array_index:24 = "25"

    mail:postfix:mail_enabled_groups:_array_index:25 = "26"

    mail:postfix:mail_enabled_groups:_array_index:26 = "27"

    mail:postfix:mail_enabled_groups:_array_index:27 = "28"

    mail:postfix:mail_enabled_groups:_array_index:28 = "29"

    mail:postfix:mail_enabled_groups:_array_index:29 = "30"

    mail:postfix:mail_enabled_groups:_array_index:30 = "31"

    mail:postfix:mail_enabled_groups:_array_index:31 = "32"

    mail:postfix:mail_enabled_groups:_array_index:32 = "33"

    mail:postfix:mail_enabled_groups:_array_index:33 = "34"

    mail:postfix:mail_enabled_groups:_array_index:34 = "35"

    mail:postfix:add_whitelist_domain = _empty_array

    mail:postfix:virus_scan_enabled = yes

    mail:postfix:spam_ok_locales = "en"

    mail:postfix:spam_notify_admin_email = "junk-admin@example.com"

    mail:postfix:black_hole_domains:_array_index:0 = "zen.spamhaus.org"

    mail:postfix:virus_db_log_level = "info"

    mail:postfix:spam_scan_enabled = yes

    mail:postfix:virus_quarantine = "virus-quarantine@example.com"

    mail:postfix:reject_unauth_piplining_enabled = no

    mail:postfix:blacklist_from = _empty_array

    mail:postfix:spam_rewrite_subject = yes

    mail:postfix:message_size_limit = 104857600

    mail:postfix:mynetworks:_array_index:0 = "127.0.0.0/8"

    mail:postfix:mynetworks:_array_index:1 = "10.27.0.0/21"

    mail:postfix:mynetworks:_array_index:2 = "10.0.0.0/24"

    mail:postfix:mynetworks:_array_index:3 = "10.23.0.0/21"

    mail:postfix:virus_log_level = "info"

    mail:postfix:host_whitelist = _empty_array

    mail:postfix:domains:_array_index:0:name = "mydomain3.com"

    mail:postfix:domains:_array_index:0:count = 4

    mail:postfix:domains:_array_index:1:name = "mydomain4.com"

    mail:postfix:domains:_array_index:1:count = 13

    mail:postfix:domains:_array_index:2:name = "mydomain.com"

    mail:postfix:domains:_array_index:2:count = 73

    mail:postfix:domains:_array_index:3:name = "mydomain5.com"

    mail:postfix:domains:_array_index:3:count = 15

    mail:postfix:domains:_array_index:4:name = "mydomain2.com"

    mail:postfix:domains:_array_index:4:count = 24

    mail:postfix:domains:_array_index:5:name = "mydomain6.com"

    mail:postfix:domains:_array_index:5:count = 13

    mail:postfix:domains:_array_index:6:name = "mydomain7.com"

    mail:postfix:domains:_array_index:6:count = 11

    mail:postfix:rbl_override_list = _empty_array

    mail:postfix:greylist_enabled = yes

    mail:postfix:list_server_log_level = "info"

    mail:postfix:group_expansion:start_interval = 10

    mail:postfix:group_expansion:enable_group_expansion = no

    mail:postfix:virus_notify_recipients = no

    mail:postfix:luser_relay_enabled = no

    mail:postfix:mydomain = "mydomain.com"

    mail:postfix:enable_list_server = yes

    mail:postfix:mydestination:_array_index:0 = "localhost"

    mail:postfix:mydestination:_array_index:1 = "$mydomain"

    mail:postfix:virus_notify_admin_email = "virus-admin@example.com"

    mail:postfix:enable_virtual_domains = yes

    mail:postfix:spam_notify_admin = no

    mail:postfix:smtp_tls_security_level = "may"

    mail:postfix:required_hits = 6

    mail:postfix:add_whitelist_host = _empty_array

    mail:postfix:always_bcc_enabled = no

    mail:postfix:enable_var_mail = no

    mail:postfix:smtpd_tls_key_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.k ey.pem"

    mail:postfix:enable_smtp = yes

    mail:postfix:relayhost = ""

    mail:postfix:mynetworks_enabled = yes

    mail:postfix:require_virtual_map = yes

    mail:postfix:spam_ok_languages = "en fr de ja sw ta"

    mail:postfix:rbl_override_enabled = no

    mail:postfix:log_rolling_days = 1

    mail:postfix:enable_smtp_in = yes

    mail:postfix:tls_server_options = "require"

    mail:postfix:spam_action = "deliver"

    mail:postfix:log_rolling_days_enabled = yes

    mail:postfix:smtpd_require_virtual_alias_map = no

    mail:postfix:spam_log_level = "warn"

    mail:postfix:smtp_uce_controlls = 1

    mail:postfix:list_server_post_to_archve = no

    mail:postfix:relayhost_enabled = no

    mail:postfix:list_server_share_archives = no

    mail:postfix:virus_action = "delete"

    mail:postfix:virus_db_update_days = 12

    mail:postfix:smtp_tls_CAfile = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c hain.pem"

    mail:postfix:virus_notify_admin = no

    mail:postfix:domain_whitelist = _empty_array

    mail:postfix:myhostname = "mail.mydomain.com"

    mail:postfix:reject_unknown_client_enabled = no

    mail:postfix:enable_smtp_out = yes

    mail:postfix:text_only_attachments = yes

    mail:postfix:log_level = "info"

    mail:global:skip_enable_service_check = no

    mail:global:auto_auth = yes

    mail:global:service_data_path = "/Library/Server/Mail"

    mail:imap:aps_topic = "com.apple.mail.XServer.af785e7e-febb-41f5-aa7c-8c5e41709220"

    mail:imap:servername = ""

    mail:imap:imap_auth_clear = yes

    mail:imap:auth_gssapi_hostname = ""$ALL""

    mail:imap:lmtp_luser_relay_enabled = no

    mail:imap:lmtp_luser_relay = ""

    mail:imap:push_notify_log_level = "info"

    mail:imap:pop_auth_clear = yes

    mail:imap:enable_listid_autosave = "no"

    mail:imap:max_imap_connections = 1000

    mail:imap:log_level = "info"

    mail:imap:tls_key_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.k ey.pem"

    mail:imap:imap_auth_plain = yes

    mail:imap:postmaster_address = "postmaster@mail.mydomain.com"

    mail:imap:quotawarn = 80

    mail:imap:enable_quota_warnings = yes

    mail:imap:pop_auth_gssapi = yes

    mail:imap:junk_mail_userid = "junkmail"

    mail:imap:global_quota = 0

    mail:imap:partitions = _empty_array

    mail:imap:tls_ca_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c hain.pem"

    mail:imap:enforce_quotas = yes

    mail:imap:not_junk_mail_userid = "notjunkmail"

    mail:imap:imap_auth_digest_md5 = yes

    mail:imap:request_enable_webmail = no

    mail:imap:client_cert_enabled = no

    mail:imap:aps_topic_enabled = yes

    mail:imap:imap_auth_gssapi = yes

    mail:imap:tls_server_options = "require"

    mail:imap:pop_auth_apop = yes

    mail:imap:quota_full_tempfail = yes

    mail:imap:imap_urlauth_host = " "

    mail:imap:enable_imap = yes

    mail:imap:enable_pop = yes

    mail:imap:partition-default = "/Library/Server/Mail/Data/mail"

    mail:imap:imap_auth_login = yes

    mail:imap:enable_sieve = yes

    mail:imap:imap_auth_cram_md5 = yes

    mail:imap:notification_server_enabled = yes

    mail:imap:tls_cert_file = "/etc/certificates/mail.mydomain.com.A58CEC4AA0A3E18FA9EC9576AF7742E60CA039D6.c ert.pem"

  • by jepping,

    jepping jepping Apr 18, 2015 11:58 AM in response to Mango Buzz
    Level 2 (430 points)
    Apr 18, 2015 11:58 AM in response to Mango Buzz

    Try disabling both the spam and virusfilter. Virus would be my first option to disable.

    It could very well be that the virusfilter is unable to scan such large PDF files and therefore creates those weird partial attachments.

    When the virusfilter is indeed the one creating these weird mails and you need the virusfiltering, then perhaps sending these PDF files through wetransfer would be a good workaround, or a dropbox folder.

    Goodluck

     

    Jeffrey

  • by Mango Buzz,

    Mango Buzz Mango Buzz Apr 20, 2015 8:11 AM in response to jepping
    Level 1 (5 points)
    Apr 20, 2015 8:11 AM in response to jepping

    Disabling both the spam and virus filter did not improve things.

  • by Mango Buzz,

    Mango Buzz Mango Buzz Apr 20, 2015 8:15 AM in response to Mango Buzz
    Level 1 (5 points)
    Apr 20, 2015 8:15 AM in response to Mango Buzz

    Looks like I found the issue. However, I still don't know how to fix it. If I send large page pdf's to a group email, then I sometimes get the garbled text. If I send it to individual users I don't.

  • by Mango Buzz,

    Mango Buzz Mango Buzz May 5, 2015 8:40 AM in response to Mango Buzz
    Level 1 (5 points)
    May 5, 2015 8:40 AM in response to Mango Buzz

    Only way to fix this is to use postfix aliases which does not rewrite the subject line.