Mac Mail : SMTP is Offline. How to Get SMTP Online?


Lot of Mac users faced issue when sending out email in Mail app on Mac OS X Yosemite, Mavericks and Mountain Lion. SMTP served messed with wrong accounts used for different servers.

Solution 1:-

  1. Open Mail app.
  2. Go to Preferences .
  3. In Accounts Tap, choose the account which Outgoing Mail Server (SMTP) labeled as Offline.
  4. Click the SMTP server and choose Edit SMTP Server List from the list.
  5. Fill the right username and password.

Solution 2:-

  1. Quit Mail app.
  2. Go to Applications > Utilities > Keychain Access and delete all SMTP passwords from keychain.
  3. Enter the name of your SMTP server in keychain search box like  mail.mailserver.com or smtp.mailserver.com.
  4. Search and find the entry which starts with smtp://. Copy and store the password in your hard  drive different location (for safety).
  5. Delete all relevant password entries for SMTP servers.
  6. Open Mail app and go to Preferences -> Accounts tab.
  7. Choose you account and choose your SMTP server from Edit SMTP servers list.
  8. Re-enter password you just deleted.

Solution 3:-

  1. Go to Apple menu -> Force Quit.
  2. Choose Mail app and select Force Quit.
  3. Restart your computer.
  4. Open Mail app and check your issue.

Solution 4:-

Go to Network Preferences -> Advanced section of Ethernet and WiFi interfaces. Add the following DNS addresses.

  • 8.8.8.8
  • 8.8.4.4

Solution 5:-

  1. Go to Mail Preferences.
  2. From the left side list, select the account which cause issue.
  3. Choose “Edit SMTP server List” from Outgoing mail server drop down menu.
  4. Correct username by appending domain name 9Ex: @gmail.com or your own domain).
  5. Re-enter password.

If you knew any other solutions for SMTP server offline Mac mail issue, inform us via comment.

2:13 pm

3 responses to Mac Mail : SMTP is Offline. How to Get SMTP Online?

I have a serious "Offline" Problem. In spite of trying all the options, the Outgoing Mail Server remains "Offline" only. Initially it does look like it will work, but after a while it turns to "Offline". I have Gmail account and I can only receive e-mail but can not send out. Surprisingly, it does work on my iPhone as well as on iPad, but doesn't work on MacBook Air.

This has happened after my office e-mail was changed to two step security(which is a company e-mail but through gmail only)successfully but my personal gmail id has this problem of going "offline"

Can you help ??

I had been fighting with this for ages and tried all of the solutions listed to no avail. I finally went back into the server list again, opened up my desired offline server and removed my password. I realized that my working servers did not have a password for the smtp server. That did the trick. I tested and tested and I am back in business!

Thank you thank you Melissa! Been dealing with this for weeks on one computer and tried everything. Back on line correctly. So greatful

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