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In 2005 MT4 didn't have any TLS support. (SMTP access for SendMail - Harami - MQL4 and MetaTrader 4 - MQL4 programming forum #5) This is why everyone uses one of the free email servers and forward message elsewhere. (Problem : email set up in metatrader4 - MQL4 programming forum #1)
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Perhaps you should read the manual. SendMail - Common Functions - MQL4 Reference
How To Ask Questions The Smart Way. (2004)
How To Interpret Answers.
RTFM and STFW: How To Tell You've Seriously Screwed Up.
According to the test email message headers ...
- MetaTrader v4 is using TLS v1.0 ... "(TLS1) tls TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"
- MetaTrader v5 is using TLS v1.2 ... "(TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"
i tried several email providers, but does not work anymore...google has gone too, which is also your 1.1
can you explain me which emailprovider with settings i can use ? would be great, big thx
Please do a Google search for "smtp relay service". You should find may providers for this. Some will offer what you want and other's not.
As an alternative, (it has been a long time since I last used this), but you can also install a local SMTP relay service on your PC or on 3rd party VPS.
- If you are using Windows Server then it should be available as part of the IIS package and you will just need to set it up and configure it.
- If on normal Windows, then you can find many open-source SMTP relay service applications on GItHub and other sites.
You can then configure the relay service to receive emails from MetaTrader in TLS 1.0 but then connect to the other SMTP servers with a high version of TLS.
You will have to do your own research on how to install and configure the SMTP relay service.
Please do a Google search for "smtp relay service". You should find may providers for this. Some will offer what you want and other's not.
As an alternative, (it has been a long time since I last used this), but you can also install a local SMTP relay service on your PC or on 3rd party VPS.
- If you are using Windows Server then it should be available as part of the IIS package and you will just need to set it up and configure it.
- If on normal Windows, then you can find many open-source SMTP relay service applications on GItHub and other sites.
You can then configure the relay service to receive emails from MetaTrader in TLS 1.0 but then connect to the other SMTP servers with a high version of TLS.
You will have to do your own research on how to install and configure the SMTP relay service.

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german email providers have strengthened the safety regulations
this is email of the provider:
You can only use a TLS protocol if your e-mail program has the current TLS versions 1.2 or 1.3. TLS versions 1.0 and 1.1 are no longer supported by us for security reasons
does anyone know what tls version metatrader uses and how to send mails like signal/price alerts,
thx for your help
best regards