Search Topics
Get Solutions Quickly
- Search FAQ and knowledge base
- Speak directly with a live technician
- Your issue is live until the problem is solved
- Answers in plain-speak, not industry jargon
- Your interests come first
Click HERE to find out more
Recent blog posts
- Do you have issue with DMARC, SPF, DKIM, or BIMI? Start here!
- 20220103 - UPDATED - Microsoft Issues Fix for Exchange Y2K22 Bug
- 20181228 - RESOLVED - Hosted Exchange - Mailbox Connectivity Issue
- 20180712 - RESOLVED - e-mail delivery delays
- Help Protect Your Identity This Summer
- 20180529 - RESOLVED - Investigating an outage at mkc1/kmo1
- 20180312 - RESOLVED - Investigating an outage at mkc1/kmo1
- 20171123 - RESOLVED - Investigating a partial outage at our LVS1 data center
- 20171103 - Investigating an outage at chi1.etrn.com
- 20171102 - RESOLVED - Investigating a partial outage at our LVS1 data center
We Answer Your Questions: FAQ
Q. Why am I receiving duplicate e-mails
A. This is usually caused by the SMTP session being terminated before our servers receive confirmation that the e-mail message has been delivered successfully. There is a know bug (ID CSCds90792) in some versions of the Cisco PIX firewall that can cause this. If you have a CCO login you view this bug using Cisco's Bug Toolkit.
To correct this issue Cisco recommends either updating the PIX firewall firmware or disabling the mailguard feature using the 'no fixup protocol smtp 25' command.
Please contact us if you need assistance with diagnosing a particular issue.
Testimonials
"In the two years our company has been using ETRN we have not been infected with a single e-mail borne virus. The nominal price paid for their services is, in my opinion, probably the best insurance a Systems Administrator can buy to protect your network."
Hank Taylor, Rocknel Fastener, Inc.