How To Fix AOL Sent Mail Failure Error Code 604?

Whenever you have to send some important emails to your officemates. But AOL mail fails the delivery and show you the AOL sent mail failure  along with the error 604 in the mailbox.

Please do not panic, This article will assist you in solving the problem.

Why is aol mail not sending emails and showing error code 604? 

If you are wondering about why is AOL mail displaying, “Sent mail failure”. the error code 604 appears on the account for few basic reasons.

  1. The sender’s address is incorrect.
  2. The outgoing address or port is invalid.
  3. Technical issues running at the AOL mail server side.
  4. Your browser is unable to respond properly.
  5. Internet or network related issues.

These are the four reasons for AOL mail sent mail failure error code 604.

aol sent mail failure error code 604

How to fix AOL mail error code 604 sent mail failure? 

Now we are aware of  AOL sent mail failure error code 604. So here are the guide to fix the problems on the AOL account.

fix aol problems

Check the mail address- 

Whenever you are receiving the sent mail failure error, the first thing you need to do is check the delivery email address.

You have most likely typed  wrong delivery address; that’s why AOL is unable to deliver the mail and showing you AOL error code 604.

So let’s review the account address. if you have doubt, you can ask a receiver to send you an email. you need to reply to that.

If you are also unable to receive emails from your AOL account. Please visit: why is aol not receiving emails?

Review the AOL server address too- 

If sometimes, users might be dealing with the AOL mail sent mail error 604 because of invalid configuration.

fix aol problems

Probably, you have made a mistake in configuring the outgoing port. So check the outgoing server settings. It must have to match to the following one.

Username- your email address.

Password- your login password.

Outgoing  address-

SMTP Port no- 465

SMTP authentication – ssl

AOL server is down- 

If you cannot send emails from the computer, please send them via phone or another device. Let’s see it is sending the mails now or not?

In case aol doesn’t let you send the emails from those devices too. Please check the AOL servers; maybe they are down. That’s why you are dealing with such issues.

fix aol problems

In that scenario, you have to wait until AOL confirms that they are live again.

Fix Browser issues- 

Some users might be dealing with AOL mail error code 604 because of browser issues. Their web browser may be failing process the request successfully.

You may also be one of them, so you are currently unable to send emails on AOL. Please reset the browser.

And then send the emails. If you are having trouble during the login process, please visit: how to fix AOL email login problems?

So these are the techniques to fix the AOL sent mail failure error 604. If you go through another issues related to the AOL issues like- AOL mail disappeared. Please inform us via comment. We will try our best to find the solution to get the problem fixed efficiently.

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