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10/18/25
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Comment on [#14999] Email attachment more than 8 MB shows HORDE [imp] Server closed the connection unexpectedly
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> Hi team, > > Email with attachment more than 8 MB is not going through and giving > the error shown below. we are using Horde 5.2.21 which is the latest > stable release, > > Also i have enabled horde debug log and can only see this : > 2020-03-18T12:56:31+00:00 ERR: HORDE [imp] Server closed the > connection unexpectedly. [pid 157556 on line 1160 of "C:\Program > Files (x86)\Parallels\Plesk\Webmail\horde\horde\imp\lib\Compose.php"] > > Also memory_limit we tried to increase it to 512 MB even that doesn't > help. We are not able to figure out the cause, attachment limit is > set as 32 MB hence it should work but even 10 MB files are not able > to get send.
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