Rank: Newbie
Groups: Registered
Joined: 3/24/2022(UTC) Posts: 1
Hello, I am trying to send an email through EASendMail but receive 501 5.5.4 Invalid Address error. here is my code. Dim mailAdresses As String = "mymail@company.com" Dim recipients As AddressCollection = New AddressCollection() recipients.AddRange(New AddressCollection(mailAdresses)) Dim address As EASendMail.MailAddress = TryCast(recipients(0), EASendMail.MailAddress) mail.[To].Add(address) I try also this. Dim mailAdresses As String = "mymail@company.com" mail.To = New AddressCollection(mailAdresses) Nothing helps. Anyone has any idea? Thanks.
Rank: Administration
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Joined: 11/11/2010(UTC) Posts: 1,153
Thanks: 9 times Was thanked: 55 time(s) in 55 post(s)
Rank: Newbie
Groups: Registered
Joined: 3/24/2022(UTC) Posts: 1
I found out what caused the problem and it was the server. Here is my code. Dim mailServer As String = "X.X.X.X" '(IP Address) Dim smtp As SmtpClient = New SmtpClient() Dim server As SmtpServer = New SmtpServer(mailServer, 25) server.UseDefaultCredentials = True server.ConnectType = SmtpConnectType.ConnectTryTLS smtp.Connect(server) and if i delete ConnectType section the error turns to "The requested name is valid, but no data of the requested type was found" Really annoying.
Rank: Newbie
Groups: Registered
Joined: 3/24/2022(UTC) Posts: 1
by adding these two lines which is down below solved my problem. Thanks server.HeloDomain server.MailFrom
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