Идентификатор на събитие: 3003 (Възникна грешка при валидирането) [От страна на клиента ...

['

Event

', '

ID:

', '

3003

', '

(A

', '

validation

', '

error

', '

has

', '

occurred)

', '

[Client

', '

Side

', '

-

', '

"Server

', '

communication

', '

error.

', '

Please

', '

refresh

', '

your

', '

browser

', '

and

', '

try

', '

again"

', '

when

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composing

', '

or

', '

replying

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to

', '

a

', '

message

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with

', '

HTML]

', '

SYMPTOMS

', '

When

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composing

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a

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new

', '

message

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or

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replying

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to

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a

', '

message

', '

the

', '

following

', '

error

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maybe

', '

presented

', '

within

', '

the

', '

browser:

', '

"Server

', '

communication

', '

error.

', '

Please

', '

refresh

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your

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browser

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and

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try

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again".

', '

Another

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symptom

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for

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this

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issue

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can

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be

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in

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the

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form

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of

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a

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server

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error

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in

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the

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server

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application

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event

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logs

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as

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follows:

', '

Description:

', '

Event

', '

code:

', '

3003

', '

Event

', '

message:

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A

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validation

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error

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has

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occurred.

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Along

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with

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the

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.NET

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error

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error

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information

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as

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follows:

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Exception

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information:

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Exception

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type:

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HttpRequestValidationException

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Exception

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message:

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A

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potentially

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dangerous

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Request.Form

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value

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was

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detected

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from

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the

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client

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(MsgBody="

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s...").

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CAUSE

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The

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.NET

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framework

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is

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displaying

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an

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error

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because

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it

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detected

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brackets

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within

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the

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message

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being

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posted

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back

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to

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the

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server.

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RESOLUTION

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Application

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Pool

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running

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under

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the

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Microsoft

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2.0

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resolve

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error"

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needs

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to

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be

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set

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that

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the

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postback

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validation

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does

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not

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occur.

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disable

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request

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validation

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follow

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steps

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below:

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within

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the

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MailEnable

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installation

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path

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to

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following

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location:

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Mail

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Enable\\BIN\\NetWebmail\\

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Locate

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the

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file

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open

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down

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and

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locate

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a

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line

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which

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may

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look

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like

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the

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following:

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validateRequest="true"

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enableEventValidation="false"/>

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Change

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the

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"validateRequest"

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it

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already

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set.

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file

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close

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restart

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within

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command

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prompt

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within

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Manager.

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web

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mail

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virtual

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the

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root

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sites

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contains

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post

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back

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validation

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check

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this

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will

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override

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web

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mail's

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virtual

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directory

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"web.config"

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file

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settings.

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applies

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as

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above

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steps

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back

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check

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by

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locating

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root

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websites

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"web.config"

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file

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and

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setting

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Alternately

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you

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can

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globally

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request

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validation

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which

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maybe

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overriding

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"web.config"

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file

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settings.

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globally

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request

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steps

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below:

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to

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the

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global

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configuration

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directory

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for

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the

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version

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webmail

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is

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using.

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example,

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if

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using

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in

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32bit

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validateRequest="false"

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section.

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for

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every

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page

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within

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command

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requestValidationMode="2.0"

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to

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"false"

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also

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applies.

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maxRequestLength="10240"

', '

executionTiemout="3600"

', '

requestValidationMode="2.0"

', '

/>

', '

MORE

', '

INFORMATION

', '

Third

', '

party

', '

script

', '

blockers

', '

may

', '

also

', '

throw

', '

similar

', '

exceptions

', '

and

', '

contribute

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to

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the

', '

"Server

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communications

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error".

', '

To

', '

ensure

', '

that

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script

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blockers

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are

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not

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the

', '

cause

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of

', '

the

', '

post

', '

back

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validation

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problems

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in

', '

web

', '

mail

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and

', '

causing

', '

the

', '

exceptions

', '

it

', '

is

', '

best

', '

to

', '

disable

', '

the

', '

script

', '

blocking

', '

application

', '

and

', '

test

', '

within

', '

web

', '

mail

', '

again.

', '

Product:

', '

MailEnable

', '

(Std-Any

', '

Pro-Any

', '

Ent-Any)

', '

Article:

', '

ME020512

', '

Module:

', '

WebMail

', '

Keywords:

', '

Server,communication,error,postback,validation,3003,HttpRequestValidationException

', '

Class:

', '

TRB:

', '

Troubleshooting

', '

(Configuration

', '

or

', '

Environment)

', '

Revised:

', '

Friday,

', '

October

', '

6,

', '

2017

', '

Author:

', '

MailEnable

', '

Publisher:

', '

MailEnable

']