SMTP servers "Simple Mail Transfer Protocol" servers are your outgoing server. These are the ones you connect to in order to send a message to another person. While your main email server is just ...

Under the Outgoing Server tab, select the "My server requires additional authentication" check box. Then, click "Advanced" and type in "587" as the Outgoing Mail (SMTP) Port.

Settings for outgoing servers -- also known as SMTP servers -- are very specific and differ depending on your email provider.

Many ISPs have recenly blocked outbound port 25 connecotions to other mail servers, as a way to control SPAM from levaeing there networks. To get mail outyou need to define what many mail programs ...

Which would not work - our outgoing server requires authentication and is not going to accept your login credentials for your office 365 email.

One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email address. In your email client software, under Outgoing mail, set the SMTP server ...