Solved: Recipient Email Address Rejected by the Server on iPhone, iPad [iOS 15.1]: Cannot Send Mail 2021

Last Updated on Sep 26, 2021

On your iPhone, iPad, and iPod touch Mail app giving the particular error with the title: Email address Rejected by the server on iPhone or Relaying denied. Then you must have to follow the below-setting guide possibilities. First, you have to correct the email address although Second follow the below steps. Getting rejected by server error or relaying denied error. Due to an incomplete setup, you can’t send mail, reply or forward Email from this mail account. You will receive it from the mail server but are unable to send or reply.

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Exact Solution that Fix: Can not Send Mail, A Copy has been placed in your Outbox. The recipient was rejected by the server because it does not allow relaying.

Compatible device: works on iPhone 13, 12 Pro/Max/Mini, iPhone XR, XS Max, 11 Pro Max, iPhone 8, iPhone 8 Plus, iPhone X, iPhone 4/4S, iPhone 5/5S/5C, and iPhone 6 and iPhone 6 plus, iPad and iPod touch 2nd generation, 3rd generation, and 5th generation.

Error cause an invalid port used to send mail from your iOS device. So you can change or update the port settings with the below simple steps, don’t need any technical knowledge and expert suggestions.

Updated on Latest iOS Update

iOS 13 reported the biggest bug and issues on sending email from outlook using the email app on iPhone, iPad. And receiving the message “Cannot Send Mail. The message was rejected by the server.” That means you couldn’t send an email to Microsoft Mail Services hosted by Microsoft:, Office 365, and Microsoft Exchange. Keep your iPhone and Apps Updated.

Why does it say my email was “rejected by the server because it does not allow relaying” when I try to send it to others?

Here’s the problem with your Mail Server Settings on your iPhone. People are facing this issue because During setup outgoing mail server details are optional and iOS users ignoring to submit your mail login details.

Can not sent mail error if Mail details are incorrect
Can not send mail error if Mail details are incorrect

Let’s Find the Mail Server Settings that should be Verified on your iPhone to send mail successfully from your Mail iPhone/iPad app. Follow the below steps to verify the mail server login credentials. This error will show when you update or change the Mail server password, but not updated on your iPhone mail settings. Sometimes, Some unmatched Outgoing mail server details saved on your iPhone that is outdated now.

  • Changing your password. Don’t forget to update your password on any email programs you use on your computer or phone. You may also get the Error like that.

Re-enter your Email ID and Password for the Outgoing Mail Server Verification

  1. Go to the Settings app on iPhone, iPad > Click Password & Accounts.
Password and Accounts settings on iPhone
Password and Accounts settings on iPhone
  • Find and Tap on your Added mail Account > Account under IMAPthat has an issue for this error
  • Verify your mail account details
    Verify your mail account details
  • Go to Outgoing Mail Server and > Tap on Primary Server address.
  • Check Outgoing mail server details
    Check Outgoing mail server details
  • Re-Enter all the Details correctly, You should check the Mail service Publick credential from the tutorial published by your mail service officially. Do Google-like “Setup my Rackspace on Email Clients”.  Enter All the Details and Get Verified successfully
    • Re-Enter password for your Mail account.
  • Account Verified on iPhone mail app
    Account Verified on iPhone mail app
  • You will be redirected back to the previous page after verified.
  • Sent mail again hope it fixed
    Sent mail again hope it fixed
  • That’s it.
  • Detailed Guide: Add email Account on iPhone.

    Use Third-Party Mail app Like Gmail, Yahoo, Outlook

    Is there an issue with your system or Unable to configure with the iOS mail app, I recommend using Gmail app or Yahoo mail these mail app allow to use Other mail services. Add a new mail account from App settings and Switch between different mail account just like the iOS mail app. Read our tutorial on Setup Another Mail account on the iPhone Gmail app.

    Steps For iOS 10 or Earlier

    • Step 1: Go to the Settings app from iPhone, iPad or iPod touch
    • Step 2: Next, Tap on Mail, Contacts, Calendars.
    • Step 3: Tap on Email account (Already registered or logged in)
    • Step 4: Move down the screen, and tap on the Outgoing mail server. (Don’t skip optional fields)
    • Step 5: Now you have to go with the Primary Server option.
    • Step 6: Next, click on the Server port option.
    • Step 7: Delete/ Remove current port and re-enter port number 25.
    • Step 8: Save the setting by a tap on “Done.”

    After that you should solve this error, Still, are you facing the same problem? Then enter valid SMTP details.

    Note: SMTP details are different for the different Email service providers, So contact your Email service provider and get the correct hostname. (ex for GMAIL: and your username and password.

    Email address Rejected by the server on iPhone, iPad

    By Going to the Setting > Mail, Contacts, Calendars > Account > SMTP > Add Server and Save setting.

    Note: Port number is also different on your Email service provider.

    I hope you solved the “Email address Rejected by the server on iPhone or Relaying denied ” or “Cannot Send Mail” problem to access your Mail from iPhone, iPad, and iPod touch.

    jaysukh patel

    Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [email protected] [OR] [email protected]

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