TOPIC:

Send Email from X# 06 Sep 2022 12:05 #23668

Topic Author

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Posts: 177

Hello everyone,
to send emails from my applications I use the System.Net.Mail.SmtpClient class for non-SSL emails and port 25, I use CDO.Message for SSL emails and on port 465. I would like to get rid of the ADODB.dll and cdosys DLLs .dll, but I can't find a solution except by resorting to third-party tools that I would like to avoid. Any suggestions?
Thank you
Danilo

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Send Email from X# 06 Sep 2022 12:14 #23671

wriedmann

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Posts: 3297

Hi Danilo,
Ciao Danilo,
System.Net.Mail.SmtpClient e System.Net.Mail.MailMessage are your friends.

oMessage			:= MailMessage{}
oMessage:Subject	:= cSubject
oMessage:Body		:= cMailBody
oMessage:Sender		:= MailAddress{ _cSender }
oMessage:@@From		:= MailAddress{ _cSender }
oMessage:@@to:Add( cAddress )
System.Net.ServicePointManager.SecurityProtocol := System.Net.SecurityProtocolType.Tls12
oSmtpClient			:= SmtpClient{}
oSmtpClient:Host	:= _cServerName
oSmtpClient:Port	:= _nPortNumber
oSmtpClient:DeliveryMethod := SmtpDeliveryMethod.Network
if _cUserName:Length > 1
	oSmtpClient:UseDefaultCredentials	:= false
	oSmtpClient:Credentials	:= NetworkCredential{ _cUserName, _cPassword }
endif
if _lUseSSL
	oSmtpClient:EnableSsl		:= true
endif
oSmtpClient:Send( oMessage )

Wolfgang

Wolfgang Riedmann
Meran, South Tyrol, Italy

www.riedmann.it - docs.xsharp.it

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Send Email from X# 06 Sep 2022 12:20 #23672

Topic Author

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Posts: 177

Thanks Wolfgang,
I did this too but System.Net.Mail.SmtpClient has been marked as Obsolete for a while,

Danilo

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Send Email from X# 06 Sep 2022 13:45 #23674

wriedmann

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Posts: 3297

Hi Danilo,
is is marked as obsolete only for Xamarin.
I'm not sure if it is worth to use an open source library like MimeKit: www.mimekit.net/
Wolfgang

Wolfgang Riedmann
Meran, South Tyrol, Italy

www.riedmann.it - docs.xsharp.it

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Send Email from X# 06 Sep 2022 17:45 #23677

ic2

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Posts: 1608

Hello Wolfgang,

wriedmann wrote:
is is marked as obsolete only for Xamarin.

That's true but it also says: SmtpClient doesn't support many modern protocols.

In fact it only supports SMTP. If that is enough for Danilo's requirements, then it's fine, but if it is needs to be flexible probably not.

See also

docs.microsoft.com/en-us/dotnet/api/syst...ablessl?view=net-6.0
jonathancrozier.com/blog/smtpclient-is-o...ls-from-your-net-app
github.com/dnnsoftware/Dnn.Platform/issues/3120

Normally I welcome it when Microsoft declares something obsolete, which means that they can't further ruin it as they usually do. But for this class I can imagine a ISP or mailserver which requires some security protocol which won't work then.

We use Chilkat for mail and many other things and this works very well..

Dick

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