andrewgroup Posted August 26, 2008 Report Share Posted August 26, 2008 An installation is having troubles using the ISP mail server to send mail. This is a Nuvox Communications T1, with PSTN T1 data services. Nuvox offers a on-net SMTP server to send mail. SMTP.NUVOX.NET that accepts and relays mail from all On-Net Hosts. We have Nuvox on many clients and regularly us this mail server, (LINUX SENDMAIL) to smarthost exhange servers and to send management alerts from many devices. The CS410 reports the following in the logs.  2008/08/26 18:00:04: Sending CDR email to <email@example.com>  2008/08/26 18:00:08: SMTP: Connect to 220.127.116.11:25  2008/08/26 18:00:08: SMTP: Received 220 smtp02.atlngahp.sys.nuvox.net ESMTP Tue, 26 Aug 2008 18:00:07 -0400  2008/08/26 18:00:08: SMTP: Received 250-smtp02.atlngahp.sys.nuvox.net Hello 74.223.YYY.XXX.nw.nuvox.net [74.223.YYY.XXX], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 52428800 250-DSN 250-ETRN 250-STARTTLS 250-DELIVERBY 250 HELP  2008/08/26 18:00:08: SMTP: Received 220 2.0.0 Ready to start TLS  2008/08/26 18:00:09: SMTP: Received  2008/08/26 18:00:09: Last message repeated 2 times  2008/08/26 18:00:09: SMTP: Connection refused on 18.104.22.168:25 The technical support group at Nuvox report the error message from the server is Here is the error I see in the mail logs: did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Has something changed with the mail send tools, we have this on numerous ISP's an relay from On-Net Mail Servers. A commercial SMTP tester on this same IP address works fine. Has a new options been slipstreamed into release 2993 release? Quote Link to comment Share on other sites More sharing options...
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