One of the most common reasons for inbound T37 OnRamp faxes to fail is connection issues with the SMTP server. This could happen due to one of the following reasons:
No SMTP Server configured
SMTP Server configured but no IP route to server exists
Incorrect username@hostname information being sent to the SMTP server
1. If inbound faxes on a T37 OnRamp GW are failing, run the following debugs:
debug voip ccapi inout debug voip vtsp all debug fax foip all debug fax mta all debug fax fmsp send t30 debug fax fmsp receive t30 debug fax mspi all debug fax dmsp default
2. If you see the following message in the debugs then,
Mar 5 16:48:47.212: (C)S: MAIL FROM:<FAX=@> Mar 5 16:48:47.708: (C)R: 501 5.5.4 Invalid Address Mar 5 16:48:47.708: esmtp_client_work: error in response to MAIL FROM
The SMTP server does not like the MAIL FROM information. This is the originator account being used in the From field in the OnRamp email and is incorrect. Either one of the following needs to be configured on the gateway and should match what is defined in the SMTP server.
! Define the postmaster mail account for the onramp gateway mta send postmaster Administrator@exchange.com OR ! Specifies the hostname and username for the originator (“From:” field of email header) mta send mail-from hostname cisco.com mta send mail-from username FAXES
3. If you see the following message in the debugs then,
Mar 4 10:46:48.703: %MSPI-1-MSPI_BAD_CONFIG: MSPI-bad configuration, mspi_setup_req:NULL server ip addressMar 4 10:46:48.703: mspi_setup_req: NULL server address
Mar 4 10:46:48.703: %LAPP_ON_MSGS-6-LAPP_ON_CAUSE_NO_ESMTP_CONNECT: ESMTP client did not connect or lost connection to remote server
The SMTP server may not be configured or configured incorrectly. Please check the following:
! Specify the destination email server that will receive the OnRamp fax email mta send server 10.1.1.1 port 25
4. If you see the following message in the debugs then,
Mar 20 09:35:30.310: SMTP is in the error state... Mar 20 09:35:30.310: disc text=no route to destination (3): SMTP client open failed Mar 20 09:35:30.310: Still waiting for the SMTP connection..... Mar 20 09:35:30.310: %LAPP_ON_MSGS-6-LAPP_ON_CAUSE_NO_ESMTP_CONNECT: ESMTP client did not connect or lost connection to remote server Mar 20 09:35:30.310: mspi_disconnect: cid=0x141, st=DISCONNECTING, cause=no route to destination (3) Mar 20 09:35:30.310: mspi_on_call_hist: cid=0x141, cause=no route to destination (3): SMTP client open failed Mar 20 09:35:30.310: disposing smtp ctx
The SMTP server is configured but either no IP route to it exists or the OnRamp GW is not able to access port 25. Please verify connectivity by doing a telnet to the SMTP server's IP Address and port 25. You should see an output similar to below
HQ#telnet 192.168.15.11 25 Trying 192.168.15.11, 25 ... Open 220 testmail.cisco.com Microsoft ESMTP MAIL Service ready at Wed, 14 Dec 2011 17:28:00 -0700
To see a sample OnRamp GW configuration, please check the Configuring T.37 article.
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