Unusual error with Sendmail 1

[audiopro]

If a user enters a badly formed email address ie. yyrtrt@.gdgdg
I get the error

error closing /usr/lib/sendmail:  (exit 256)

Any idea how to deal with it?

Keith

http://www.studiosoft.co.uk

 

[ChrisHirst]

Validate before invoking sendmail is the only way.

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
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[audiopro]

Thanks Chris, I test for the presence of a period and @ but obviously not enough.
I have tested my other servers and also shared hosting and the problem is only on one particular server.

Keith

http://www.studiosoft.co.uk

 

[ChrisHirst]

I usually check for characters before and after the '.'

(\S+)@(\S+)\.(\S+)$ in it's simplest reg exp form

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
Webmaster Forum

 

[audiopro]

Thanks, assistance as always much appreciated.
I contacted my ISP but got the usual BS back about the server being unmanaged.

I only discovered the problem by accident, when testing the form.
I was entering nonsense to check some other functions and got this odd error.
It only does it when '@' and '.' are together. If that is the case, I remove them both and my validation fails the submission any way.



Keith

http://www.studiosoft.co.uk

 

[ChrisHirst]

@. is an invalid character sequence for the Internet Mail RFCs

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
Webmaster Forum

 

[1DMF]

You may want to look @

http://search.cpan.org/dist/Mail-RFC822-Address/Address.pm

It is apparently considered bad practice to try to roll your own regex to validate things such as email addresses.



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"If a shortcut was meant to be easy, it wouldn't be a shortcut, it would be the way!"
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[audiopro]

The check I do is only very basic and is designed to filter out keyboard bashing rather than validate an actual address.
A simple substitution of @. solved the original problem.
Not handling it resulted in a fatal error being thrown and the script crashed, which was unacceptable.

Keith

http://www.studiosoft.co.uk