Server Authentication Error For Email

Server Authentication Error For Email

These authentication errors are caused by Simple Mail Transfer Protocol (SMTP) servers. These servers use different types of methods to authenticate the mail but it was mostly done by the plain method in our application. You can choose different authentication methods like CRAM-MD5, LOGIN, DIGEST-MD5 to solve your issue.

Server Authentication Error For Email

If you want to use an email client such as Microsoft Office Outlook, you need to get your email account’s correct IMAP or POP settings. For Gmail, here are the correct IMAP and POP settings. For IMAP settings:

• Incoming Mail (IMAP) Server – imap.gmail.com
  • Requires SSL: Yes
  • Port: 993
• Outgoing Mail (SMTP) Server – smtp.gmail.com
  • Requires SSL: Yes
  • Requires TLS: Yes (if available)
  • Requires Authentication: Yes
  • Port for SSL: 465
  • Port for TLS/STARTTLS: 587

For POP settings:

• Incoming Mail (POP) Server – pop.gmail.com
  • Requires SSL: Yes
  • Port: 995
• Outgoing Mail (SMTP) Server – smtp.gmail.com
  • Requires SSL: Yes
  • Requires TLS: Yes (if available)
  • Requires Authentication: Yes
  • Port for TLS/STARTTLS: 587
• Server timeouts – Greater than 1 minute (5 is recommended)

In Gmail, you have to enable IMAP or POP first on your Gmail account before you can use an email client like Microsoft Office Outlook. To enable IMAP or POP on your email account, open your web browser and log in to your Gmail account. Next, click the gear icon on the upper right corner of the screen then select “Settings.”

In “Settings” screen, go to “Forwarding and POP/IMAP” tab then enable the appropriate settings. If you want to use IMAP, in “IMAP Access,” select “Enable IMAP” then click “Save Changes” at the bottom. If you want to use POP, in “POP Download,” select “Enable POP for all mail” then click “Save Changes.” For Yahoo, see the following:

For IMAP:

• Incoming mail server:
  • Server – imap.mail.yahoo.com
  • Port – 993
  • Requires SSL – Yes
• Outgoing mail server (SMTP):
  • Server – smtp.mail.yahoo.com
  • Port – 465 or 587
  • Requires SSL – Yes
  • Requires authentication – Yes

For POP:

• Incoming mail server:
  • Server – pop.mail.yahoo.com
  • Port – 995
  • Requires SSL – Yes
• Outgoing mail server (SMTP):
  • Server – smtp.mail.yahoo.com
  • Port – 465 or 587
  • Requires SSL – Yes
  • Requires TLS – Yes (if available)
  • Requires authentication – Yes