Emails sent directly to your RT mail address (via SMTP) with attachments fail

RT6.0.1 - When emails sent directly to RT mail address (via SMTP) with attachments, they fail with the below message and the ticket is not created. But rt-mailgate works manually.

queue general --action correspond --debug --url https://rt.cs.hhh.edu/", ctlad
dr=rt@rt.cs.hhh.edu (8/0), delay=00:00:00, xdelay=00:00:00, mailer=prog, pri=833391, dsn=4.0.0, stat=Deferred: prog mailer (/bin/sh) exited with EX_TEMPFAIL2026-02-17T10:23:34.455429-05:00 rt sm-mta[404635]: 61HFNWsd404635: from=, size=8942086, class=0, nrcpts=1, msgid=<bccf9997e2431adb7dbc81979c678488@mail.gmail.

In site config Set($MaxAttachmentSize, 52428800); # 50MB Mysql settings are also good.
All perl modules are installed.
RT6 does not create a ticket when an email is sent to rt@cs.hhh.edu with any size attachment

cat test.eml | /rt/rt6/bin/rt-mailgate --queue General --action correspond --url https://rt.cs.hhh.edu/ works. email is created with attachment.

Does it work if you send an email without an attachment?

Are you running out of memory for the mail process?

Yes, we could.

We resolved it. It was an apache issue.

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