POSTAL v2 SMTP 535 Denied

[anthonyolazabal]

Hello,
I've just install the last version of Postal, setup a server and a domain (with DNS).
After creating a SMTP credential a trying to add it on a wordpress, it fail showing :
250-My capabilities are
smtp_1 | [9] [2021-09-02T10:28:43.242] DEBUG -- : [RGLYGK] => 250 AUTH CRAM-MD5 PLAIN LOGIN
smtp_1 | [9] [2021-09-02T10:28:43.283] DEBUG -- : [RGLYGK] <= AUTH CRAM-MD5
smtp_1 | [9] [2021-09-02T10:28:43.284] DEBUG -- : [RGLYGK] =>
smtp_1 | [9] [2021-09-02T10:28:43.284] DEBUG -- : [RGLYGK] <=
smtp_1 | [9] [2021-09-02T10:28:43.287] DEBUG -- : [RGLYGK] => 535 Denied
smtp_1 | [9] [2021-09-02T10:28:43.288] DEBUG -- : [RGLYGK] <= QUIT
smtp_1 | [9] [2021-09-02T10:28:43.288] DEBUG -- : [RGLYGK] => 221 Closing Connection

Do you have any idea with taht ?

[willpower232]

It implies that the details you're entering are incorrect.

postal/lib/postal/smtp_server/client.rb

Lines 219 to 244 in 2e7aaab

	def auth_cram_md5(data)
	challenge = Digest::SHA1.hexdigest(Time.now.to_i.to_s + rand(100000).to_s)
	challenge = "<#{challenge[0,20]}@#{Postal.config.dns.smtp_server_hostname}>"
	handler = Proc.new do |data|
	@proc = nil
	username, password = Base64.decode64(data).split(' ', 2).map{ |a| a.chomp }
	org_permlink, server_permalink = username.split(/[\/\_]/, 2)
	server = ::Server.includes(:organization).where(:organizations => {:permalink => org_permlink}, :permalink => server_permalink).first
	next '535 Denied' if server.nil?
	grant = nil
	server.credentials.where(:type => 'SMTP').each do |credential|
	correct_response = OpenSSL::HMAC.hexdigest(CRAM_MD5_DIGEST, credential.key, challenge)
	if password == correct_response
	@credential = credential
	@credential.use
	grant = "235 Granted for #{credential.server.organization.permalink}/#{credential.server.permalink}"
	break
	end
	end
	grant || '535 Denied'
	end
	@proc = handler
	"334 " + Base64.encode64(challenge).gsub(/[\r\n]/, '')
	end

On the credentials page there is a link to Read more about sending outgoing e-mails, make sure the details you have given wordpress match the ones on the page.

[anthonyolazabal]

Thanks for the quick answer, I figure how to do before your reply. The "login" to use when authenticating on SMTP is hidded behind a link and not directly accessible with the credential created, this was my mistake.
Thanks