Outbound e-mail through MailScanner : JPG gets corrupted.

Tue May 31 12:32:24 UTC 2016

As the MailScanner was running virtual I created a copy and adjusted that machine to function on the same location as the exchange server is located. I then created a send connector for a particular domain to send its emails though the local MailScanner. I am ruling the VPN out in this way.
And what happens? The images arrive I a good state. Even a checksum check shows that the checksum of send and received image are identical…  Now I know where to start.. never thought data communication would be an issue.

[cid:image001.png at 01D1BB49.3DBABCF0]

Van: MailScanner [mailto:mailscanner-bounces+mark=meelhuysen.com at lists.mailscanner.info] Namens Jerry Benton
Verzonden: dinsdag 31 mei 2016 06:16
Aan: MailScanner Discussion <mailscanner at lists.mailscanner.info>
Onderwerp: Re: Outbound e-mail through MailScanner : JPG gets corrupted.

If you are not expanding the TNEF or replacing it, then I doubt it is MailScanner. The absolute best solution is to stop using RTF email on Exchange and force users to use HTML. From the client point of view there is no difference as they can still use the same formatting tools. It can easily be done with a GPO.

-
Jerry Benton
www.mailborder.com<http://www.mailborder.com>

On May 30, 2016, at 12:08 PM, Mark Meelhuysen > wrote:

Haha, the minute i pressed send i knew i could get that answer ☺
I was rather hoping you could tell me what the best practise in this situation is. Which option can I change best?
Use TNEF Contents = no does not make a difference.
Expand TNEF = no does not make a difference

Van: MailScanner [mailto:mailscanner-bounces+mark=meelhuysen.com at lists.mailscanner.info] Namens Jerry Benton
Verzonden: maandag 30 mei 2016 17:53
Aan: MailScanner Discussion <mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>>
Onderwerp: Re: Outbound e-mail through MailScanner : JPG gets corrupted.

the answer is staring you in the face.
-
Jerry Benton
www.mailborder.com<http://www.mailborder.com/>
Sent from my iPhone

On May 30, 2016, at 11:46, Mark Meelhuysen > wrote:
Ow oke, my mailscanner.conf :

Expand TNEF = yes
Use TNEF Contents = replace
Deliver Unparsable TNEF = no
TNEF Expander = /usr/bin/tnef --maxsize=100000000
TNEF Timeout = 120

I never changed these values, so i asume they are default.

Van: MailScanner [mailto:mailscanner-bounces+mark=meelhuysen.com at lists.mailscanner.info] Namens Jerry Benton
Verzonden: maandag 30 mei 2016 17:19
Aan: MailScanner Discussion <mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>>
Onderwerp: Re: Outbound e-mail through MailScanner : JPG gets corrupted.

it is a mail scanner setting
-
Jerry Benton
www.mailborder.com<http://www.mailborder.com/>
Sent from my iPhone

On May 30, 2016, at 11:15, Mark Meelhuysen > wrote:
I lookup it up what that does, but have not set that up manually, so Exchange is acting standard.

Van: MailScanner [mailto:mailscanner-bounces+mark=meelhuysen.com at lists.mailscanner.info]Namens Jerry Benton
Verzonden: maandag 30 mei 2016 16:58
Aan: MailScanner Discussion <mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>>
Onderwerp: Re: Outbound e-mail through MailScanner : JPG gets corrupted.

Are you converting TNEF?

-
Jerry Benton
www.mailborder.com<http://www.mailborder.com/>

On May 30, 2016, at 10:54 AM, Mark Meelhuysen > wrote:

Thats correct :

•         Exchange sends the email directly to the recipient by DNS and throught the local gateway (so not through MailScanner) : Everything is fine
•         Exchange sends the email to MailScanner and MailScanner sends the e-mail to the recipient : Not the message but the pictures get mangled.

Van: MailScanner [mailto:mailscanner-bounces+mark=meelhuysen.com at lists.mailscanner.info] Namens Alex Neuman van der Hans
Verzonden: maandag 30 mei 2016 16:50
Aan: MailScanner discussion <mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>>
Onderwerp: Re: Outbound e-mail through MailScanner : JPG gets corrupted.

Should I understand from that that depending on how you configure Exchange the message either gets mangled or not?

On May 30, 2016, at 9:46 AM, Mark Meelhuysen > wrote:

When i create a new send connector that makes sure that for the particular domain the mail is delivered to the ISP smarthost the images arrive fine.

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
MailScanner mailing list
mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>
http://lists.mailscanner.info/listinfo/mailscanner

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
MailScanner mailing list
mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>
http://lists.mailscanner.info/listinfo/mailscanner

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
MailScanner mailing list
mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>
http://lists.mailscanner.info/listinfo/mailscanner

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

--
MailScanner mailing list
mailscanner at lists.mailscanner.info<mailto:mailscanner at lists.mailscanner.info>
http://lists.mailscanner.info/listinfo/mailscanner

--
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.
Meelhuysen IT Solutions<http://www.meelhuysen.com/>.

-------------- 
Dit bericht is gescanned op virussen en andere gevaarlijke inhoud en lijkt schoon te zijn.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mailscanner.info/pipermail/mailscanner/attachments/20160531/8dd9f134/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 30743 bytes
Desc: image001.png
URL: <http://lists.mailscanner.info/pipermail/mailscanner/attachments/20160531/8dd9f134/attachment.png>