Can't send message

[mateors]

I am facing a problem with sending outgoing email, I am using rainloop/snappymail v2.29.1

Maddy log says:

Oct  5 22:04:34 vmi974759 maddy[129983]: smtp: incoming message#011{"msg_id":"0c864b81","sender":"[email protected]","src_host":"webmail.shaperk.com","src_ip":"127.0.0.1:58744"}

Oct  5 22:04:34 vmi974759 maddy[129983]: smtp: RCPT error#011{"effective_rcpt":"[email protected]","msg_id":"0c864b81","rcpt":"[email protected]","reason":"reject directive used","smtp_code":501,"smtp_enchcode":"5.1.8","smtp_msg":"Use Submission for outgoing SMTP"}

Oct  5 22:04:34 vmi974759 maddy[129983]: smtp: aborted#011{"msg_id":"0c864b81"}

Snappymail log says:

[2023-10-05 15:27:46.254][1861fb76] SMTP[ERROR]: MailSo\Smtp\Exceptions\NegativeResponseException: Failed to add recipient "[email protected]": 501 5.1.8 Use Submission for outgoing SMTP (msg ID = aa4237d4) in /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/MailSo/Smtp/SmtpClient.php:535
Stack trace:
#0 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/MailSo/Smtp/SmtpClient.php(440): MailSo\Smtp\SmtpClient->validateResponse()
#1 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/MailSo/Smtp/SmtpClient.php(274): MailSo\Smtp\SmtpClient->sendRequestWithCheck()
#2 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Actions/Messages.php(833): MailSo\Smtp\SmtpClient->Rcpt()
#3 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Actions/Messages.php(178): RainLoop\Actions->smtpSendMessage()
#4 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/ServiceActions.php(142): RainLoop\Actions->DoSendMessage()
#5 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Service.php(132): RainLoop\ServiceActions->ServiceJson()
#6 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Service.php(14): RainLoop\Service::RunResult()
#7 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/include.php(143): RainLoop\Service::Handle()
#8 /var/www/vhosts/webmail.shaperk.com/public_html/index.php(11): include('/var/www/vhosts...')
#9 {main}
[2023-10-05 15:27:46.255][1861fb76] SERVICE[WARNING]: CantSendMessage[302]
#0 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/ServiceActions.php(142): RainLoop\Actions->DoSendMessage()
#1 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Service.php(132): RainLoop\ServiceActions->ServiceJson()
#2 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/app/libraries/RainLoop/Service.php(14): RainLoop\Service::RunResult()
#3 /var/www/vhosts/webmail.shaperk.com/public_html/snappymail/v/2.29.1/include.php(143): RainLoop\Service::Handle()
#4 /var/www/vhosts/webmail.shaperk.com/public_html/index.php(11): include('/var/www/vhosts...')
#5 {main}

Any help appreciated, I am really got stuck.

[mateors]

I figured out the issue by myself and fixed. The issue was with domain configuration. I configured the * domain to fix.