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connection dropped due to SMTP protocol event sink
- Thread starter deklin
- Start date
![[yinyang]](/data/assets/smilies/yinyang.gif "[yinyang] [yinyang]")
Sounds like a DNS issue,
answer copied from expert-exchange
I would suggest you download the DNSDiag.exe tool on
Its called DNS Resolver Tool. You can test out resolution to domains using a
syntax like dnsdiag mail.foo.com -d -v 1, and it will show you the query to
the DNS server as batched by Exchange in verbose mode and possible errors.
answer copied from expert-exchange
I would suggest you download the DNSDiag.exe tool on
Its called DNS Resolver Tool. You can test out resolution to domains using a
syntax like dnsdiag mail.foo.com -d -v 1, and it will show you the query to
the DNS server as batched by Exchange in verbose mode and possible errors.
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