efa-project.org

Dears

I already setup efa as mail relay in outgoing for internal postfix mail server , with set messages size limit to 30MB , but i didn't able to sendmail more that 10M with bounced messages at efa relay as you see below
#postconf | grep -i message_size_limit
message_size_limit = 30920000


Oct 20 14:45:52 mail postfix/smtp[580]: 685E69B206D: to=<user.one@example.com>, relay=xx.xx.xx.xx[xx.xx.xx.xx]:25, delay=5.3, delays=3.3/0.03/2/0, dsn=5.3.4, status=bounced (message size 13225722 exceeds size limit 10485760 of server xx.xx.xx.xx[xx.xx.xx.xx])

Oct 20 15:20:51 mail postfix/smtp[4709]: 9B8339B206D: to=<user.two@example.com>, relay=xx.xx.xx.xx[xx.xx.xx.xx]:25, delay=11, delays=10/0/0.56/0, dsn=5.3.4, status=bounced (message size 21474598 exceeds size limit 10485760 of server xx.xx.xx.xx[xx.xx.xx.xx])

Note xx.xx.xx.xx refer to ip of efa relay

Kindly advice

KIndly advice

relay=xx.xx.xx.xx[xx.xx.xx.xx]:25

Is this your server, or the remote server?

xx.xx.xx.xx refer to relay server , although i search at relay server EFA for 10485760
With #grep -R 10485760 /etc/

without any result

What is relay server? Is it yours? Is it EFA? Is it a remote system?

What is relay server? Is it yours? Is it EFA? Is it a remote system? Relay server is EFA that i mean , protect internal mail server running postfix MTA + cyrus-imap

Relay server is EFA that i mean , protect internal mail server running postfix MTA + cyrus-imap

Did you restart the server after changing the value?

No , Am JUST RESTART
/etc/init.d/MailScanner restart
/etc/init.d/postfix restart

Any advice

Check /etc/postfix/main.cf and make sure you don't have message_size_limit in there twice.

I found my problem in my use case...

Nov 14 20:19:11 efa2 postfix/smtp[21146]: 3C5261E2D45: to=<xxxxxx@gmail.com>, relay=127.0.0.1[127.0.0.1]:2525, delay=23, delays=21/0/2.3/0, dsn=5.3.4, status=bounced (message size 10678254 exceeds size limit 10485760 of server 127.0.0.1[127.0.0.1])

My case is the relay go to port 2525, which is my stunnel to AWS SES service!

[smtp-tls-wrapper]
accept = 2525
client = yes
connect = email-smtp.us-east-1.amazonaws.com:465
delay = yes
sslVersion = TLSv1

And SES has limit to 10MB per mail.