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I configure postfix and dovecot (debian sq, and I have set high limits both on my php and at my postfix configuration file, still I dont recieve large mail or with large attachment files at my webmail , I checked the log and all seems going well... is there any configuration I should look for or something I missed?

Thanks.

File size = 5mb the webclient is squirrelmail

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Why would your php file upload limit matter with your postfix configuration? it sounds like you're testing this through a webmail interface? –  thinice Mar 19 '12 at 19:27
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Define "large attachments" –  Bart Silverstrim Mar 19 '12 at 19:32
    
Why do you think the limit is on your side, and not at the webmail provider? –  Zoredache Mar 19 '12 at 19:34
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Repeat after me: Email is NOT a file transfer protocol. You shouldn't be sending anything large via email. Even if YOUR mail server accepts it there is a good chance the recipient's server will not. –  voretaq7 Mar 19 '12 at 19:36
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If you "don't receive" then you must have an error report or log of it not being received. Post it. Also, a few years back some guys invented a Protocol for Transferring Files; crazy stuff really. It even supports encryption and security stuff these days. Might want to look into it. –  Chris S Mar 19 '12 at 19:36

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What paraemters did you change?

On a CentOS 6 box, the /etc/php.ini has upload_max_filesize as 2MB. Was this the parameter you changed? I believe postfix's default max size is 10MB, so there should have been no need to change that.

If it's a PHP error, the problem won't be in your maillog. It will show up in the web server logs.

In your maillog, do you see the SMTP transaction?

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yea, thanks, I noticed I get an error "not enough free space in mail queue" still I dont know how to set this queue bigger... any idea please? –  jpganz18 Mar 19 '12 at 19:59
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Huh. You have free disk space in the partition, right? –  cjc Mar 19 '12 at 20:10

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