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sender domain validation

805015Oct 7 2008 — edited Feb 10 2020

Hello,

we have

# ./imsimta version
Sun Java(tm) System Messaging Server 7.0-0.04 64bit (built Jun 20 2008)
libimta.so 7.0-0.04 64bit (built 01:11:48, Jun 20 2008)
Using /opt/sun/comms/messaging64/config/imta.cnf
SunOS hostname 5.10 Generic_127128-11 i86pc i386 i86pc

By doing telnet to port 25 on server or AV/AS gateway which is used as SMTP server, I am able to send the mail with some invalid email id, for example

msg from: abc or msg from: abc@xyz.com, where xyz.com doesn't exist.

I want to validate the sender domain, how could we force to do that and should not allow sending the mail.

I tried adding keyword "spfmailfrom" in channels like tcp_local, however I had not created any SPF_LOCAL list in mappings.
We have multiple domains hosted here.

Thanks,
Sumant

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Locked on Nov 5 2008

Added on Oct 7 2008

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