# Fresh install // Not sending emails, NL form **URL:** \ **Category:** Product Support\ **Created:** [March 29, 2022, 2:12pm UTC](https://forum.mautic.org/t/fresh-install-not-sending-emails-nl-form/23339 "2022-03-29T14:12:53Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![wlsfh](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/wlsfh/32/6731_2.png) [@wlsfh](https://forum.mautic.org/u/wlsfh)\ **Post date:** [March 29, 2022, 8:53pm UTC](https://forum.mautic.org/t/fresh-install-not-sending-emails-nl-form/23339/7 "2022-03-29T20:53:40Z")
> [@wlsfh](#): > > mautic.ERROR: [MAIL ERROR] Expected response code 354 but got code “503”, with message "503-All RCPT commands were rejected with this error: 503-Unexisting, forged or unallowed sender address 503 Credentials are fine. I also received the test email using ‘send test email’ in configuration/email settings. It looks like it’s happening when sending emails to external addresses. By the looks of things, it seems this is a pending issue? > [@mautic.ERROR: \[MAIL ERROR\] Expected response code 354 but got code "503"](https://forum.mautic.org/t/mautic-error-mail-error-expected-response-code-354-but-got-code-503/18705): > > Your software Mautic: 3.2.5, 3.3.1 and 3.3.2 PHP: 7.4 MySQL: 5.7 CentOS: 7.9 cPanel: 94.0.4 PHP-FPM: Activated Service to send mail through: Other SMTP Server SMTP encryption type: none SMTP authentication mode: Plain How should email be handled?: Send inmmediatly Send test mail: Success! Your problem I have been using Mautic for several years now and it always worked fine, however, from version 3.2.5 to 3.3.1 as well as with 3.3.2, it is having problems to send the emails. I have t… --- _[View the full topic](https://forum.mautic.org/t/fresh-install-not-sending-emails-nl-form/23339)._