Email sending using gmail smtp with TLS

Question

User1804579801 posted

Dear All,

I have used EASendMail dll for sending email using gmail with TLS security.But It is a paid version.I want a solution for sending a email using gmail with TLS security .

Is there any code level changes which can be done for using gmail smtp.

Thanks in advance

Answer 1

User753101303 posted

Hi,

It should work out of the box with SmtpClient. Have you tried something such as https://blogs.msdn.microsoft.com/mariya/2006/06/15/sending-e-mail-using-smtpclient-and-gmail/ already ?

That said if I remember you have to tweak your account not because of TLS but because of some other authentication option. Have a try and see if it meets your standards.

Answer 2

User1804579801 posted

Hi patriceSc

The link give by you

https://blogs.msdn.microsoft.com/mariya/2006/06/15/sending-e-mail-using-smtpclient-and-gmail/ already ?

shows SSL security (smtp.EnableSsl = true;)  but our IT team says they removed SSL from all servers  as it old one and have upgraded to TLS security which is latest one(due to this we are getting mailer issue ever offten in live projects and facing a lot difficulty ) and when i try for TLS using gmail I got EASendmail option but which is costly.

Please suggest.

Answer 3

User753101303 posted

This is for historical reason. Whenever you see SSL it means actually TLS. Try this with port 587 and it should work.

Ah ! Another option would be to use https://github.com/jstedfast/MailKit which is suggested as a replacement for SmtpClient in ASP.NET Core which might support also the authentication stuff I talked about previously but it might be a bit more complex. Start maybe with SmtpClient and keep this option for later ?

Edit: done a quick search. They are using OAuth 2 for authentification (and so you have to enable https://support.google.com/accounts/answer/6010255?hl=en for SmptClient)

With MailKit it seems it would be something like https://github.com/jstedfast/MailKit/blob/master/FAQ.md#GMailAccess (option #2 seems a bit more complex, never tried this yet myself)