| MailConfig | MailConfig. addCrlPath(String crlPath) |  | 
| MailConfig | MailConfig. addCrlValue(Buffer crlValue) |  | 
| MailConfig | MailConfig. addDKIMSignOption(DKIMSignOptions dkimSignOptions) | Adds a DKIMSignOptions. | 
| MailConfig | MailConfig. addEnabledCipherSuite(String suite) |  | 
| MailConfig | MailConfig. addEnabledSecureTransportProtocol(String protocol) |  | 
| MailConfig | MailConfig. removeEnabledSecureTransportProtocol(String protocol) |  | 
| MailConfig | MailConfig. setAllowRcptErrors(boolean allowRcptErrors) | set if sending allows rcpt errors | 
| MailConfig | MailConfig. setAuthMethods(String authMethods) | set string of allowed auth methods. | 
| MailConfig | MailConfig. setConnectTimeout(int connectTimeout) |  | 
| MailConfig | MailConfig. setDisableEsmtp(boolean disableEsmtp) | set if ESMTP should be tried as first command (EHLO) | 
| MailConfig | MailConfig. setDKIMSignOption(DKIMSignOptions dkimSignOptions) | Sets one DKIMSignOptions for convenient. | 
| MailConfig | MailConfig. setDKIMSignOptions(List<DKIMSignOptions> dkimSignOptions) | Sets DKIMSignOptions. | 
| MailConfig | MailConfig. setEnableDKIM(boolean enableDKIM) | Sets true to enable DKIM Signatures, sets false to disable it. | 
| MailConfig | MailConfig. setEnabledSecureTransportProtocols(Set<String> enabledSecureTransportProtocols) |  | 
| MailConfig | MailConfig. setHostname(String hostname) | Set the hostname of the smtp server. | 
| MailConfig | MailConfig. setHostnameVerificationAlgorithm(String hostnameVerificationAlgorithm) |  | 
| MailConfig | MailConfig. setIdleTimeout(int idleTimeout) |  | 
| MailConfig | MailConfig. setIdleTimeoutUnit(TimeUnit idleTimeoutUnit) |  | 
| MailConfig | MailConfig. setKeepAlive(boolean keepAlive) | set if connection pool is enabled
 default is true | 
| MailConfig | MailConfig. setKeepAliveTimeout(int keepAliveTimeout) | Set the keep alive timeout for SMTP connection, Defaults in seconds. | 
| MailConfig | MailConfig. setKeepAliveTimeoutUnit(TimeUnit keepAliveTimeoutUnit) | Sets TimeUnitof keeping connections in the pool alive. | 
| MailConfig | MailConfig. setKeyCertOptions(KeyCertOptions options) |  | 
| MailConfig | MailConfig. setLocalAddress(String localAddress) |  | 
| MailConfig | MailConfig. setLogActivity(boolean logEnabled) |  | 
| MailConfig | MailConfig. setLogin(LoginOption login) | Set the login mode for the connection. | 
| MailConfig | MailConfig. setMaxMailsPerConnection(long maxMailsPerConnection) | Sets the max emails count per connection before it gets closed. | 
| MailConfig | MailConfig. setMaxPoolSize(int maxPoolSize) | set the max allowed number of open connections to the mail server
 if not set the default is 10 | 
| MailConfig | MailConfig. setMetricsName(String metricsName) |  | 
| MailConfig | MailConfig. setMultiPartOnly(boolean multiPartOnly) | Sets to encode multipart only or not. | 
| MailConfig | MailConfig. setNtDomain(String ntDomain) | Sets the domain used on NTLM authentication | 
| MailConfig | MailConfig. setOwnHostname(String ownHostname) | set the hostname to be used for HELO/EHLO and the Message-ID | 
| MailConfig | MailConfig. setPassword(String password) | Set the password for the login. | 
| MailConfig | MailConfig. setPipelining(boolean pipelining) | Sets to enable/disable the pipelining capability if SMTP server supports it. | 
| MailConfig | MailConfig. setPoolCleanerPeriod(int poolCleanerPeriod) | Set the connection pool cleaner period, defaults in milli seconds, a non positive value disables expiration checks and connections
 will remain in the pool until they are closed. | 
| MailConfig | MailConfig. setPoolCleanerPeriodUnit(TimeUnit poolCleanerPeriodUnit) | Sets the TimeUnitof pool cleaning period. | 
| MailConfig | MailConfig. setPort(int port) | Set the port of the smtp server. | 
| MailConfig | MailConfig. setProxyOptions(ProxyOptions proxyOptions) |  | 
| MailConfig | MailConfig. setReceiveBufferSize(int receiveBufferSize) |  | 
| MailConfig | MailConfig. setReconnectAttempts(int attempts) |  | 
| MailConfig | MailConfig. setReconnectInterval(long interval) |  | 
| MailConfig | MailConfig. setReuseAddress(boolean reuseAddress) |  | 
| MailConfig | MailConfig. setReusePort(boolean reusePort) |  | 
| MailConfig | MailConfig. setSendBufferSize(int sendBufferSize) |  | 
| MailConfig | MailConfig. setSoLinger(int soLinger) |  | 
| MailConfig | MailConfig. setSsl(boolean isSsl) |  | 
| MailConfig | MailConfig. setSslEngineOptions(SSLEngineOptions sslEngineOptions) |  | 
| MailConfig | MailConfig. setSslHandshakeTimeout(long sslHandshakeTimeout) |  | 
| MailConfig | MailConfig. setSslHandshakeTimeoutUnit(TimeUnit sslHandshakeTimeoutUnit) |  | 
| MailConfig | MailConfig. setStarttls(StartTLSOptions starttls) | Set the tls security mode for the connection. | 
| MailConfig | MailConfig. setTcpCork(boolean tcpCork) |  | 
| MailConfig | MailConfig. setTcpFastOpen(boolean tcpFastOpen) |  | 
| MailConfig | MailConfig. setTcpKeepAlive(boolean tcpKeepAlive) |  | 
| MailConfig | MailConfig. setTcpNoDelay(boolean tcpNoDelay) |  | 
| MailConfig | MailConfig. setTcpQuickAck(boolean tcpQuickAck) |  | 
| MailConfig | MailConfig. setTrafficClass(int trafficClass) |  | 
| MailConfig | MailConfig. setTrustAll(boolean trustAll) |  | 
| MailConfig | MailConfig. setTrustOptions(TrustOptions options) |  | 
| MailConfig | MailConfig. setUseAlpn(boolean useAlpn) |  | 
| MailConfig | MailConfig. setUserAgent(String userAgent) | Sets the Mail User Agent(MUA) name. | 
| MailConfig | MailConfig. setUsername(String username) | Set the username for the login. | 
| MailConfig | MailConfig. setWorkstation(String workstation) | Sets the workstation used on NTLM authentication |