Large file reporting issue

[mIRRONEL]

hello, i'm ronel and i use cacti version 1.2.23
I'm trying to send report but it fails to send to the mail server. I checked into cacti log I found this error

2023/08/12 16:25:41 - CMDPHP WARNING Backtrace: (/reports_admin.php[125]:reports_form_actions(), /lib/html_reports.php[460]:reports_send(), /lib/html_reports.php[603]:generate_report(), /lib/reports.php[592]:mailer(), /lib/functions.php[5040]:cacti_debug_backtrace())
2023/08/12 16:25:41 - MAILER
2023/08/12 16:25:41 - REPORTS generate_report, Problems sending Report 'Daily Graph R1'. Problem with e-mail Subsystem Error is 'Could not instantiate mail function.'

and I also check into cacti mail log I found this

Aug 12 16:46:40 localhost postfix/smtp[60572]: 9AFC24C60: to=<Cacti@cacti.net>, relay=mail.cacti.net[23.166.80.13]:25, delay=13086, delays=13085/0.04/0.99/0.27, dsn=4.7.1, status=deferred (host mail.cacti.net[23.166.80.13] said: 450 4.7.1 Client host rejected: cannot find your hostname, [103.15.40.102] (in reply to RCPT TO command))
Aug 12 16:51:08 localhost postfix/postdrop[61710]: warning: uid=48: File too large
Aug 12 16:51:08 localhost postfix/sendmail[61709]: fatal: Cacti@cacti.net(48): message file too big

how I get rid of this? Thanks in advance

[TheWitness]

Well, there is a Maximum Size setting in Reports, but if the mail receiver has a lower limit imposed, there is not much Cacti can do about it. Why where you sending to Cacti@cacti.net anyway?

[mIRRONEL]

I'm not sending the mail to Cacti@cacti.net, i think cacti using his own mail relay server [mail.cacti.net] to send the report

[TheWitness]

Go to Console > Settings > Mail/Reporting/DNS and verify that the Emailing Options are accurate. Then, do the same thing for the Reporting > Edit > Details tab.

[mIRRONEL]

Many thanks man, now its working