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| Intermittently I am getting the following error when I try
and send an email message from ASP.Net code on my server.
80% of the time it works fine -- but 20% of the time it
fails with the following message:
The transport failed to connect to the server.
I am setting the mail server via the IP address. It
actually is the local mail server, but I didn't want to
have any DNS resolution issues -- so I don't understand
how it could ever not connect.
It only seems to be happening for HTML formatted emails.
I have enabled the website IP it is coming from for
connection and relay within the SMTP properties in IIS.
This sounds like a configuration issue, but I don't
understand why it would be intermittent. It only seems to
happen from my ASP.Net code. I have ASP mailers that are
not seeing this problem.
If you go back and try and resend the same email a minute
or so later it will send.
This has happened about 9 times (out of probably 50
emails) in the last 3 months. So it is a problem. I keep
trying fixes but it is so intermittent I cannot tell if it
is fixed for sure until we see the error occur again.
When it occurs the page takes a long time (maybe 5
minutes) to reload -- like it is trying to contact the
server and not getting through.
Does anyone have any ideas what might be wrong or how I
can troubleshoot this?
Thanks,
Lori
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