hi michiel, thanks a lot for your answer. so, i did the comparison. everything excepting sending an email is pretty fast (about 2-5s für 10MB). sending an email with 10MB as an attachment takes about 3 minutes. at this point you will say, that there is a problem with the mailserver... but i am not sure. if i really had a problem with the mail server, then i would experiencing exactly the same behaviour with unsing an email client... but the email client sends also pretty fast and so i would say that this is not the bottleneck. what about perl? if i understand otrs code well, there is a transformation into base64 and during the 3 minutes trying to send the email, i recognize a very high load of the server cpu (100% on one core). don't you think that there is another problem that is maybe placed into the transformation into base64 or maybe something directly with perl... thanks again for your help. regards, patrick. -----Ursprüngliche Nachricht----- Von: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] Im Auftrag von Michiel Beijen Gesendet: Mittwoch, 7. April 2010 14:04 An: User questions and discussions about OTRS. Betreff: Re: [otrs] emails with large attachments takes very long Hi Patrick, An obvious question would be: is the mail server the component here causing the trouble? If adding the attachment to a note takes as much time as adding it to an email, it is caused by OTRS. Otherwise, your mail server is the bottleneck here. ((enjoy)) - Michiel Beijen R&D Follow me on Twitter: @otrsnl [https://twitter.com/otrsnl] OTRS AG Norsk-Data-Str 1. 61352 Bad Homburg Germany T: +31 (0) 6457 42418 F: +49 (0) 9421 56818-18 I:  http://www.otrs.com/ Business Location: Bad Homburg, Country Court: Bad Homburg, Commercial register: 10751, Tax ID: 003 240 97505 Chairman of the Board: Burchard Steinbild, Managing Board: André Mindermann (CEO), Martin Edenhofer On Wed, Apr 7, 2010 at 1:44 PM, Patrick Schiess wrote:

hi,

first my setup:

otrs 2.4.7

win 2003

mssql 2008

perl 5.10

apache 2.2.10

mod_perl 2.0.4/dev

we are experiencing that sending emails with large attachments (> 5MB) through otrs takes very long. i am talking about 2 minutes or even more... 4 minutes when the attachment ist about 10MB. i tried to change the storage placement from DB to FS, but it didn’t change anything. unfortunately i don’t get any more specific informations in the log files.

does anyone have some similar issues or maybe someone of you guys has a solution to this problem ?

thanks for your help.

regards,

patrick.

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