If your client does not support SMTP authentication, you won't be able to send mail through your client using your Gmail address. If you're having trouble sending mail but you've confirmed that encryption is active for SMTP in your mail client, try to configure your SMTP server on a different port (465 or 587)

Jun 27, 2020 · SMTP Password: your Gmail password. Gmail SMTP port: 465 (SSL) or 587 (TLS) For the rest of us, let’s get started! Why do you need to set up SMTP settings in Gmail? First, let’s see why you need to set up SMTP settings in Gmail. SMTP settings are needed when you have to: Send emails directly from your website. Set up an SMTP plugin on First of all, it looks like you're using the wrong port. Gmail exposes port 465 for SMTP over SSL and port 587 for SMTP with STARTTLS, as documented here.The difference between these two is that SMTP over SSL first establishes a secure SSL/TLS connection and conducts SMTP over that connection, and SMTP with STARTTLS starts with unencrypted SMTP and then switches to SSL/TLS. Indy does not support OAuth at this time. However, that is not the only way to authenticate with GMail. If you have 2FA enabled on your Gmail account, you can generate an application-specific password, and that works just fine with Indy. If you're trying to add your Outlook.com account to another mail app, you might need the POP, IMAP, or SMTP settings for Outlook.com. You can find them below or by going to POP and IMAP settings in Outlook.com. Feb 20, 2018 · Introduction. A little-known feature about Gmail and Google Apps email is Google's portable SMTP server. Instead of having to manage your own outgoing mail server on your DigitalOcean VPS, you can simply configure Google's SMTP server settings into whatever script or program you wish to send email from.

I want to authenticate myself using my Gmail ID and password on a Gmail SMTP server. I am using the GSASL library. I have a set of mechanisms that my client supports: Anonymous, External, Login, Plain, SecureID, Digest-MD5 and CRAM-MD5. Does somebody know which mechanism Gmail uses for user authentication?

Hi Ryan, smtp.gmail.com supports the TLS protocol on port 587 for incoming connections. When sending to other servers, it does it's best to connect to whatever protocol the other server will accept. I don;t know if there is a publication about what the receiving SMTP servers accept, but they will certainly accept SSL and TLS as well as

S/MIME is a long standing protocol which allows encrypted and signed messages to be sent using standard mail delivery SMTP. It uses public key cryptography to: Encrypt the message on send and decrypt the message on receipt with a suitable private key to keep message content private.

For more information, please refer to Option 1 (SMTP client submission) section of this article and check if all settings are correct. If all settings are correct and you can’t send out email using Office 365 account either, I recommend you test if the Office 365 server is working properly for this account for SMTP client submission.